Ten Tec 68FTT417 User Manual Model 417 Users Manual

Ten Tec Inc Model 417 Users Manual

Model 417 Users Manual

iTABLE OF CONTENTSTABLE OF CONTENTSLIST OF ILLUSTRATIONSSPECIFICATIONSWARNING NOTICES10 METER OPERATIONINTRODUCTIONUNPACKINGi-iiiii-ivv-viviiviiviiiix1 INSTALLATION1.1 INTRODUCTION1.2 ELECTRICAL CONNECTIONS1.3 HIGH VOLTAGE TRANSFORMERINSTALLATION1.4 TRANSCEIVER INTERCONNECTIONS1.5 ANTENNA REQUIREMENTS1.6 GROUND CONNECTION1.7 HIGH POWER OPERATION1.8 ALC1.9 COOLING SYSTEM1-11-11-11-21-21-21-21-31-32 OPERATING INSTRUCTIONS2.1 INTRODUCTION2.2 FRONT PANEL CONTROLS2.2.1 BAND SWITCH2.2.2 TUNE2.2.3 LOAD2.2.4 POWER2.2.5 OPR-STBY2.2.6 QSK-PTT2.2.7 MULTI-METER SWITCH2.2.7.a Ep2.2.7.b Is2.2.7.c FWD2.2.7.d REF2.2.8 PLATE CURRENT METER2.2.9 OVERDRIVE2.2.10 WAIT2.2.11 PEAK POWER BARGRAPH2-12-12-12-12-12-12-12-12-12-12-12-22-22-22-22-22-22-2
ii2.3 REAR PANEL CONNECTIONS AND CONTROLS2.3.1 TRANSCEIVER2.3.2 ANTENNA2.3.3 KEY IN2.3.4 KEY OUT2.3.5 PTT/VOX2.3.6 ALC2.3.7 ALC CONTROL2.3.8 AC LINE2.3.9 LINE FUSES2.4 INITIAL TURN-ON2.5 TUNE – UP PROCEDURE2.5.1 CHECKS TO MAKE BEFORE TUNING UP2.5.2 IMPORTANT POINTS TO REMEMBER2.5.3 SUGGESTED TUNE – UP PROCEDURE3 OPERATION AND SAFETY3.1 INTRODUCTION3.1.1 TUBES3.1.2 INTERLOCKS3.1.3 FUSES4 TROUBLESHOOTING4.1 INTRODUCTION4.2 MAINTENANCE5 CIRCUIT DESCRIPTIONS AND ILLUSTRATIONS5.1 INTRODUCTION5.2 INPUT MATCHING ASSEMBLY A6 (81946) AND 15M FILTER ASSEMBLY A7 (81953)5.3 HIGH VOLTAGE RECTIFIER ASSEMBLY A2 (81944)5.4 SCREEN SUPPLY AND GRID BIAS ASSEMBLY A10(81950)5.5 QSK ASSEMBLY A11 (81949)5.6 SWR ASSEMBLY A4 / RELAY A14 (81951 / 81959)5.7 PLATE CONNECTOR ASSEMBLY A3 (81948)5.8 METER/SWITCH/DISPLAY ASSEMBLIES A12 andA13 (81947 and 81952)5.9 HV-AC LINE INPUT ASSEMBLY A9 (81945)5.10 LOAD SHUNT ASSEMBLY A5 (81943)5.11 SCHEMATIC DIAGRAM, MODEL 417 AMPLIFIER6 MASTER PARTS LIST2-22-22-22-22-22-22-32-32-32-32-32-32-32-32-43-13-13-13-14-14-15-15-15-15-35-45-65-85-95-105-125-145-156-1
iiiLIST OF ILLUSTRATIONSFIG DESCRIPTION PAGE1-1 T/R CONNECTIONS FOR TEN-TEC TRANSCEIVERSWITH TX OUT AND TX EN1-2 T/R CONNECTIONS FOR OTHER TRANSCEIVERS2-1 MODEL 417 TUNING CHART2-2 MODEL 417 TUNING LOG2-3 MODEL 417 FRONT PANEL2-4 MODEL 417 REAR PANEL2-5 MODEL 417 TOP VIEW2-6 MODEL 417 BOTTTOM VIEW4-1 TROUBLESHOOTING HINTS1-41-42-52-62-72-72-82-94-1ASSEMBLY A6 (81946) INPUT MATCHING BOARD5-1 CIRCUIT TRACE5-2 COMPONENT LAYOUTASSEMBLY A2 (81950) H.V. POWER SUPPLY BOARD5-3 CIRCUIT TRACE5-4 COMPONENT LAYOUTASSEMBLY A10 (81950) SCREEN SPLY / GRID BIAS BOARD5-5 COMPONENT LAYOUT5-6 CIRCUIT TRACEASSEMBLY A11 (81949) QSK BOARD5-7 COMPONENT LAYOUT5-8 CIRCUIT TRACEASSEMBLY A4 (81951) SWR BOARD5-9 CIRCUIT TRACE5-10 COMPONENT LAYOUTASSEMBLY A3 (81948) PLATE CONNECTOR BOARD5-11 CIRCUIT TRACE5-12 COMPONENT LAYOUT5-25-25-35-35-45-55-65-75-85-85-95-9
ivASSEMBLY A12 (81947) METER/SWITCH BOARD5-13 COMPONENT LAYOUT5-14 CIRCUIT TRACEASSEMBLY A13 (81952) DISPLAY BOARD5-15 COMPONET LAYOUT & TOP CIRCUIT5-16 BOTTOM CIRCUIT TRACEASSEMBLY A9 (81945) AC LINE / DELAY BOARD5-17 COMPONENT LAYOUT5-18 CIRCUIT TRACEASSEMBLY A5 (81943) LOAD SHUNT BOARD5-19 CIRCUIT TRACE5-20 COMPONENT LAYOUT5-21 SCHEMATIC DIAGRAM, MODEL 4175-105-115-105-125-125-135-145-145-15
vSPECIFICATIONSMODEL 417BAND COVERAGEPOWER OUTPUTDRIVING POWERPLATE EFFICIENCYINPUT AND OUTPUTIMPEDANCEHARMONICSCW BREAK-INPROTECTIVE CIRCUITSPRIMARY POWERLINE PROTECTIONTUBESCOOLING160, 80, 40, 30, 20, 17, and 15 meters(12 and 10 meters for authorized users).1500 watts continuous in SSB, CW, AMTOR/PACTOR(50% duty cycle modes) on all bands. 1000 wattsRTTY/SSTV (continuous duty cycle modes) for up to 10minutes on 160, 80, 40, 20, 15, and 10 meter bands (750watts on WARC bands 30, 17, and 12 meters).60 watts typical for 1500 watts output.Up to 65% depending on band, frequency, line voltageand impedance load.50 ohms unbalanced with VSWR <2:1Meets or exceeds FCC requirements.Built-in T/R switching in less than 7 ms.A.) Screen grid voltage regulation, current limiting, overvoltage protection and MOV arc over protection. LEDover-current indication.B.) Control grid voltage regulation, current limiting andLED over-current indication.C.) Plate current over-current trip at 1.5 amps. Seriesresistor for arc absorption.240 VAC –10%/+5% @ 20 amps, 50/60 HzPrimary line fuses, chassis interlock, and step-start inrushprotection.Two Svetlana 4CX800A ceramic tetrodes in grid-drivenconfiguration.Forced air, vertical exhaust, using centrifugal blower toproduce .1” of water pressure drop at sea level, 25 degs. Cair temperature.
viMETERINGFRONT PANEL CONTROLSSTATUS INDICATORSPLATE VOLTAGE SUPPLYSCREEN SUPPLYCONSTRUCTIONSIZEWEIGHTFull time plate current meter. Second meter selectable forscreen grid current, plate voltage, forward power, andreflected power (x10). Peak forward power indicated onfull-time LED bargraph display.TUNE and LOAD control knobs with 6:1 reduction drive.Rotary band switch and meter switch for screen gridcurrent, plate voltage, forward or reverse power.Standby / Operate , QSK / PTT-VOX and Power on/offrocker switches.Power on, wait, standby/operate, screen grid over-current,control grid over-current.Step-start inrush protected. Approximately 3000 VDC @no load, approximately 2700 VDC @ full load.6 amp, 1000 PIV diodes in fullwave bridge circuit. 9 each220 uF electrolytic filter capacitors. 10 ohm arcabsorption resistor.360 VDC voltage regulated, current limited..125” aluminum plate transformer and RF tank chassis..062” aluminum control / airbox chassis and covers.HWD = 8.5" x 19" x 20"(21.6 x 48.3 x 50.8 cm)84 lbs. (38.18 kg)
viiWARNING!!!!!!!This amplifier contains lethal voltages when operating.DO NOT operate this amplifier with the covers removed.The power supply circuits in this amplifier can produce up to3000 volts and cause serious injury or death!CAUTION!!!Never attempt to operate the TITAN III without firstconnecting a suitable antenna or 50 ohm dummy load ofsufficient power rating or SERIOUS DAMAGE MAYRESULT!10 / 12 METER OPERATION OF THE TITAN III AMPLIFIERFCC rules permit licensed amateurs to modify their own amplifiers for operation inthe 24.89 – 24.99 MHz and 28 - 29.7 MHz bands. If you enclose a copy of yourvalid amateur radio license with the warranty registration card for your newamplifier, an optional input matching circuit (assembly A8) and appropriateinstallation information will be sent to you without charge.
viiiINTRODUCTION The model 417 TITAN III is an advanced design linear amplifier using two4CX800A high power tetrodes in a grid driven configuration. This amplifier usesa ducted forced air cooling system and operates easily at 1500 watts output withmaximum efficiency of 65% . Two panel meters provide system monitoring. One meter is dedicated to fulltime plate current measurement. The other meter is switchable among platevoltage, screen grid current, forward power, or reflected power. Two front panel LEDs indicate overdrive conditions for the control grid andscreen grid circuits. Plate current overdrive trip is provided at 1.5 amps. Band coverage includes 160, 80, 40, 30, 20, 17 and 15 meters as shipped fromthe factory. With proof of authorization, 12 and 10 meters may be enabled with anoptional matching network from TEN-TEC. Primary power of 240 VAC is required. Remember, tune-up at 1500 wattsoutput and 240 VAC line voltage can require up to 20 amps line current. TheTITAN III primary AC lines are fused at 20 amps. ABC-20 fuses or equivalentmust be used in replacement to protect the tubes. Interlocks on the high voltagepower supply are provided to ensure operator safety. NEVER DEFEAT THESESAFETY PRECAUTIONS !!!!
ixUNPACKINGCarefully remove the amplifier from the packing carton and inspect it for signs of damage.Carefully remove the high voltage power transformer from its’ packing carton and inspect it forsigns of damage. If the amplifier or transformer has been damaged, notify the delivering carrierimmediately, stating the full extent of the damage. Save all damaged cartons and packingmaterial. Liability for any shipping damage rests with the shipping carrier.Complete the warranty registration form and mail to TEN-TEC immediately (include a copy ofyour amateur radio license if you are requesting the 10 meter option). Save the packing materialfor re-use in the event that moving, storage, or reshipment is necessary.Shipment of your TITAN III in other than factory packing material may result in damage.This is not covered under TEN-TEC warranty.The following hardware and accessories are packed with your TITAN III. Make sure you havenot overlooked anything.2 ea. 20 AMP ABC-20 fuses 270382 ea. 11/2 AMP MDL-11/2 fuses 270181 ea. key cable 461601 ea. .056 allen wrench 380401 ea. .062 allen wrench 380881 ea. # 8 allen wrench 381244 ea. #10 hex nuts 54005(for plate transformer installation)2 ea. 4x40 long black flathead screw 6003924ea. 4x40 short black flathead screw 60080(to finish installation of top cover)1 ea. warranty card 740201 ea. operator’s manual 74367 2 ea spare 14” tube chimney clamp 38265If any of the above are missing, contact the repair department at TEN-TEC for replacement.Repair dept. (865) 428-0364Switchboard (865) 453-7172FAX (865) 428-4483Before powering up your TITAN III, visually inspect the unit for possible physical damage,such as dents or parts jarred loose during shipment. If you remove the top cover, remember thatsafety interlocks on both line and high voltage prevent power up. Do not connect this amplifierto AC power without the power transformer installed and the top cover securely held to thechassis with the provided cabinet screws.
1-1CHAPTER 1 INSTALLATION1.1 INTRODUCTION: When setting upthe station, provide adequate ventilation forthe amplifier. Also, select a location thatallows comfortable access to the frontcontrols and adequate clearance for rearpanel connections.1.2 ELECTRICAL CONNECTIONS:The TITAN III amplifier draws up to 20amps at 240 VAC. Care should be taken notto overload house wiring circuits usuallyfused or circuit breakered at 15 to 20 amps.A straight run circuit with # 10 / 2 wire withground and breaker or fuses at 20 amps isstrongly advised. Do not connect the TITANIII to AC voltage until installation of HVpower transformer is completed.1.3 HIGH VOLTAGE TRANSFORMERINSTALLATION: DO NOT CONNECTTHE AC LINE CORD TO 240 VAC WALLOUTLET BEFORE INSTALLATION OFTHE HV POWER TRANSFORMER.Check to make sure the amplifier isunplugged from the wall. Remove the topcover of the amplifier. Note only 8 screwswere initially installed at the factory. Thiswas done to simplify your task. Four of thescrews are in the underside bottom edges(two long and two short). Temporarilyremove the left side chassis rail (four shortscrews). There are four 10 x 32 nuts (TEN-TEC part #54005) in the packing kit. Youmust use these to mount the transformer andnot the nuts in the transformer shippingcarton. Identify the large open area in thechassis where the transformer mounts.Note the location of the four threaded studsin the chassis. Start two nuts only on thetwo studs closest to the center of theamplifier chassis. Just “start” the two nuts,engaging only a few threads. Orient thetransformer with the two wire HV lead sideof the transformer coil toward the centerchassis shield. Being careful not to disturbthe printed circuit board behind the meters,align the slots in the transformer bottommounting bracket under the two nuts thatyou just installed. Slide the transformertoward the shield until the studs are seated inthe transformer mounting slots aboutmidway. Align the slots in the other bottommounting bracket with the two remainingstuds in the floor of the chassis near theoutside of the amp. Install the tworemaining nuts on the open studs. Using along nut driver or socket, tighten all fournuts. Connect the two wire HV cable to thesocket on the HV rectifier board A2 (81944)mounted on the center shield. Note the plugwill seat properly in the socket in onedirection only. Visually inspect theconnection for proper seating. Connect thefour wire primary cable to the four wirecable extending from the rear chassis areanear the smaller low voltage transformer.Again this plug will only seat properly inone direction. Care should be taken whenre-installing the side rail and top cover not topinch this cable. Excess cable length maybe looped and tucked between the side railand fan housing scroll. Remember to installall 34 screws in the top cover when re-assembling. The extras you need are in thepacking kit. To access the five screws alongeach bottom edge, carefully tilt the amplifieron it’s side or slide it to the edge of the tableand work from below. Note that the fronttwo screws in each bottom edge are longerthan the rest (4 long screws total).Never ship or transport the amplifier withthe transformer installed !!! Seriousdamage to the chassis may result.
1-21.4 TRANSCEIVERINTERCONNECTIONS: When using theTITAN III with TEN-TEC transceivers withTX EN and TX OUT connectors, follow thediagram in Figure 1-1. The QSK-PTT/VOXswitch on the TITAN III should be in theQSK position for all modes of operation.This hook-up arrangement will work withthe OMNI series, PARAGON I and II,PEGASUS, JUPITER, and ORION. Somemodern Yaesu transceivers are alsoequipped with a full break-in keying loopthat can be utilized in a similar fashion. Ifyou are unsure about connecting thisequipment, please contact the TEN-TECfactory for instructions. When connecting the TITAN III with allother transceivers, use the diagram in Figure1-2. Note that the key or keyer must beconnected to the KEY IN jack on theTITAN III, a cable is run from KEY OUTto the key input jack on your transceiver,and the line from the external T/R N.O.relay contacts on the transceiver must beconnected to the PTT/QSK jack on theTITAN III. When using this configuration,the QSK-PTT/VOX switch on the amplifiermust be in the PTT/VOX position for SSBoperation and in the QSK position for CWoperation.1.5 ANTENNA REQUIREMENTS:The TITAN III amplifier is designed for usewith antennas resonant at the frequency ofoperation and having an impedance withinthe limit of 25 to 100 ohms, or an SWR of2:1 or less (<10% reflected power). Notethat any SWR other than 1:1 will result inTUNE and LOAD settings different fromthose in the manual reference chart (Figure2-1). The nominal load impedance of theamplifier is 50 ohms. Antennas can exhibitan SWR of more than 2:1 in some part of theband. For operation under these conditions,we recommend using an antenna matchingnetwork that will enable the TITAN III towork into a 50 ohm load for maximumpower transfer to the antenna.1.6 GROUND CONNECTION: In theinterest of personal safety and to reduce thepossibility of stray RF pickup oninterconnecting cables, all station equipmentshould be well grounded to earth and tosupply line ground bus. It is important tostrap all equipment chassis together withshort heavy leads. This ground bus maythen be tied to an external earth groundingrod.1.7 HIGH POWER OPERATION: TheTITAN III amplifier operates comfortablyat a maximum of 1500 watts output. Newowners often find that other components intheir station may not. Before operating atthis power level, be certain to check thefollowing items:1. The coax from the TITAN III to thefeed point of your antenna must betop quality RG-8 or better. Werecommend silver plated connectorsrather than chrome platedconnectors. Make sure that all coaxconnectors are tight.2. All coax switches or relays in thefeed line must be rated at 1500 wattsor higher. NEVER ACTIVATE IN-LINE SWITCHES WHILETRANSMITTING.3. Verify that the components in yourantennas are rated for the TITAN IIImaximum power levels (dipolecenter insulator, end insulators,baluns, traps, etc.) Make sure thatall radiating sections are well clearof metallic objects such as raingutters and antenna supportingCAUTION!!!Never attempt to operate the TITAN IIIwithout first connecting a suitableantenna or 50 ohm resistive load ofsufficient power rating orSERIOUS DAMAGE MAY RESULT!
1-3structures. For the first few hours ofoperation, check the SWRfrequently. Any increase inreflected power is an indication thatsomething between the amplifier andthe antenna elements, including theend insulators, is heating and mustbe corrected.4. A solid earth ground is oftenessential. Every station will have aunique electrical ground due tolocation of equipment, distancebetween units, distance from housewiring ground rod, distance from RFground rod, etc. Keep equipmentground straps as short and thick as possible and RF ground rod as closeto the station as possible.5. If you use an antenna tuner, make allSWR/matching adjustments with theTITAN III in the STANDBY modeusing transceiver low power only. 6. If any of your home entertainmentelectronic devices have RF leaks, theTITAN III may find them. If youare not familiar with standardprocedure for controlling this type ofinterference, consult the ARRLRadio Frequency InterferenceManual.1.8 ALC: Most solid state transceivers donot provide connection for ALC input and itis unnecessary to make any external ALCconnection to these rigs. The ALC outputjack is used primarily with tube-typetransmitters or transceivers with a negativegoing ALC system. The ALC ADJUSTcontrol is used to set the threshold for properALC action. This is -1 to -15 VDCdepending on input RF drive level. Anegative output voltage will be present at theALC jack only when the TITAN III is in theOPERATE mode and the input RF drive isabove the threshold setting. Leave thiscontrol fully clockwise if you have norequirement for external ALC.1.9 COOLING SYSTEM: The TITAN IIIuses a pressurized cabinet with the main airintake through the right front side of thechassis and exhaust through the tubechimneys on the right rear top of theamplifier. It is safe to operate the amplifieras long as there are no impediments to theflow of air near the air intakes and/or theexhaust.
1-4TRANSCEIVERFIGURE 1-2 T/R CONNECTIONS FOR OTHERTRANCEIVERS WITHOUT TX OUT & TX ENFIGURE 1-1 T/R CONNECTIONS FOR TEN-TECTRANCEIVERS WITH TX OUT & TX ENTITAN IIITITAN IIITITAN IIITITAN III
2-1CHAPTER 2OPERATING INSTRUCTIONS2.1 INTRODUCTION: The followinginstructions will enable the operator to quicklyplace the TITAN III in operation. Included aredescriptions of the front panel controls and rearpanel connections, followed by a detailed tune-up procedure. Refer to Chapter 3 operation andsafety tips.2.2 FRONT PANEL CONTROLS: The frontpanel controls and their functions are describedbelow.2.2.1 BAND SWITCH: This switch selects thedesired frequency of operation. This is an eightposition switch that covers the 160 meter to 10meter bands. NOTE: A built-in switch stopprevents operation in the 10 and 12 meter bands.For 10 and 12 meter operation you must contactthe factory for an authorized modification kit.30 meter operation is done in the 40B position,17 meter operation in the 15 meter position, 12meter operation in the 10 meter position.2.2.2 TUNE: This control adjusts variablecapacitor C1 to provide resonance at theoperating frequency. Figure 2-1 shows theapproximate settings for both the TUNE andLOAD controls on each band. Keep in mindthat the settings in this chart are for operationinto an ideal 50 ohm resistive load. There isalso a blank log chart that you may use to recordthe actual control settings for your antennas.2.2.3 LOAD: This control adjusts variablecapacitor C2 for the proper amplifier outputloading. See Figure 2-1.2.2.4 POWER: This switch routes the AC lineto the primary of the low voltage supply. Whenon, the TITAN III will power up and theindicator light in the POWER switch will light.2.2.5 OPERATE/STANDBY: This switch,when in the OPERATE position, places theamplifier online. When in the STANDBYposition, the amplifier is bypassed and onlythe transceiver power is routed to theantenna. When in the OPERATE position,the indicator light in the switch will light.NOTE: No high voltage will be read on themetering when this switch is in STANDBY. The OPERATE/STANDBY switch alsoserves as the plate current trip-off circuitreset switch. At 1.5 amps plate current, theplate current trip-off circuitry will activate.The lighted segment of theOPERATE/STANDBY switch will go outwhen plate current trip-off has occurred. Toreset, switch back to STANDBY andimmediately back to OPERATE. Thelighted segment of the switch should now belit again and the amplifier is ready to use.2.2.6 QSK/PTT: This switch, when in theQSK position, configures the key circuits forCW/QSK operation. For late model TEN-TEC transceivers with TX EN and TX OUTconnectors, or late model Yaesu transceiversconnected using a full break-in keying loop,this position is used for all modes ofoperation. Placing the switch in the PTTposition allows the TITAN III to becontrolled by the PTT/VOX input jackrather than the KEY IN/KEY OUT loop.2.2.7 MULTIMETER SWITCH: Thisswitch connects the right hand meter tomonitor various amplifier parameters.A. Plate voltage (Ep) - When in thisposition, the meter reads plate voltage.This voltage is line voltage dependentat a ratio of 12.5 V plate per 1 V line.Plate voltage is approximately 3000VDC at a line voltage of 240 VAC.Therefore, at a line voltage of 250
2-2VAC the meter will read a little higher(3125 VDC).B. Screen current (Is) - When in this position,the meter is paralleled with a resistor inseries with the screen supply. Thismonitors screen grid current. The upperlimit for screen current is 75 mA.NEVER OPERATE THE TITAN III INEXCESS OF 75 mA SCREEN GRIDCURRENT. A warning zone indicator isused on the face of the meter to alert theoperator. In addition to the analog meter,the screen overdrive LED indicatesexcessive screen current.C. Forward power (FWD) - When in thisposition, the meter is connected to theforward port of a bridge circuit at theantenna output. This measures forwardRF output power. It is, however, moreload dependent than an externalwattmeter. If your antenna is far fromresonance, the accuracy is not as good andpower measurements should be madeexternally.D. Reflected power (REF) - When in thisposition, the meter is connected to thereverse port of the bridge at the antennaoutput. Reflected power is read at 1/10indication scale of forward power (200watts full scale).2.2.8 PLATE CURRENT METER:Full time plate current metering is providedby the left analog meter.2.2.9 OVERDRIVE: These two LEDs indicategrid overdrive conditions. A. When the screen overdrive LED is lit, thescreen current is approaching or has passed itslimit. Reduce drive from the transceiverimmediately and retune. B. When the control grid overdrive LED islit, the control grid current is approaching or haspassed its limit. Reduce drive from thetransceiver immediately and retune.2.2.10 WAIT: This LED indicates a 3 minutewarm-up period for the tube at initial power up.After being turned on for 3 minutes, the waitLED goes out and the TITAN III can beplaced in the operate mode.2.2.11 PEAK POWER BARGRAPH:This meter is connected to the bridge at theantenna output through an emitter followerto monitor peak RF output power. When thered LED is lit, 1500 watts output has beenreached.2.3 REAR PANEL CONNECTIONSAND CONTROLS: The rear panelconnections and their functions aredescribed below.2.3.1 TRANSCEIVER: This is a standardSO-239 receptacle designed for a matingPL-259 plug. RG-58U or similar 50 ohmcoax is required to connect the TITAN III tothe transceiver.2.3.2 ANTENNA: This is a standard SO-239 receptacle designed for a mating PL-259plug. RG-8 or similar 50 ohm coax rated for1500 watts is required for connection to theantenna.2.3.3 KEY IN: This jack is the input forthe TITAN III transmit/receive relaysystem. When used with late model TEN-TEC transceivers, this jack is connected tothe TX OUT connector on the transceiver.When used with other transceivers, a key orkeyer is connected to this jack for CWoperation.2.3.4 KEY OUT: This jack is a protectedoutput from the TITAN III which passes theKEY IN to the transceiver after all relays inthe TITAN III have closed and it is ready totransmit. When used with late model TEN-TEC transceivers, this jack is connected tothe TX EN connector on the transceiver.When used with other transceivers, this jackis connected to the transceiver key inputjack.2.3.5 PTT/VOX: This jack is an input tothe TITAN III transmit/receive relay
2-3circuits. When used with late model TEN-TECtransceivers, this jack is not used. When usedwith other transceivers, this jack is connected tothe normally open (grounding) contacts of therelay key out jack of the transceiver.2.3.6 ALC: This jack provides a negative goingALC voltage, used primarily with tube typetransmitters/transceivers. See section 1.8 fordetailed information.2.3.7 ALC CONTROL: This control adjuststhe ALC threshold voltage from approximately -1 to -15 VDC depending on RF input from thetransceiver.2.3.8 AC LINE: This cable is connected tostandard 240 VAC. Be sure the line used topower the TITAN III is capable of supplying 20amps of current at 240 VAC, and that it isprotected by either fuses or circuit breakers of20 amps. Wire size of the AC feed line shouldbe at least 10/2 with ground or larger.2.3.9 LINE FUSES: Primary line fuses (ABC-20) are accessible through these panel fuseholders. Replace with ABC-20 or comparablefuses only.2.4 INITIAL TURN-ON: The followingsteps should be followed when turning on yourTITAN III.A. Set multimeter switch to the plate voltage(Ep) position.B. Place the power switch to ON. If any ofthe following do not occur, press OFF atonce and investigate before proceeding.1. The power switch light should light.2. The meter lights should light.3. The fan motor should start and airflow should be felt at the exhaust porton top of the amplifier.4. The wait LED should light.5. All meter indications are zero.6. All other LEDs are not lit.NOTE: HIGH VOLTAGE IS PRESENT ONLYIN THE OPERATE MODE. THE OPERATEMODE IS DISABLED FOR 3 MINUTESWHILE THE WAIT LED IS LIT.2.5 TUNE UP PROCEDURE: Thefollowing section describes important pointsto observe during tune up. A suggestedprocedure for safely tuning up the TITANIII is included.2.5.1 CHECKS TO MAKE BEFORETUNING UP: Check the load connected tothe amplifier. This can best be done byleaving the TITAN III in the BYPASSmode and using only the transceiver outputpower. Use a reliable SWR bridge orwattmeter to determine the SWR of the load(antenna) connected to the amplifier. If thereflected power is less than 10% of theforward power, the VSWR is less than 2:1.If the reflected power is 4% or less, theVSWR is 1.5:1 or lower. A VSWR of 2:1 orless is essential.2.5.2 IMPORTANT POINTS TOREMEMBER: The most importantparameters to observe during tune up are thecontrol grid current and screen grid current.Excessive grid current even for a relativelyshort period of time can and will damage thetube. If grid currents are not exceeded, the4CX800A tubes will deliver many years oftrouble free service. In the TITAN III thecontrol grid is monitored by front panelLED indicator. When control grid current isexceeded, the GRID overdrive LED willlight. Reduce the drive immediately andretune the TITAN III. Screen grid current ismonitored by the multimeter, (when in the Isposition) and by an LED overdrive indicatorcontinuously. Screen grid current should bekept to a minimum during tune up andalways in a positive direction. When screencurrent is exceeded the SCREEN overdriveLED will light. Reduce drive immediatelyand retune. After tune up, erratic lighting ofeither overdrive indicator could indicatebreakdown in the load (antennacomponents). Reduce drive and check forarcing or heating of baluns, coax or otherelements. Brief blinks of the LEDs at initialpower-on or key-down are OK.
2-42.5.3 SUGGESTED TUNE UPPROCEDURE: Following is therecommended procedure for safe and propertune up of the TITAN III.A. Set the band switch to the desired band.For 30 meter operation, use position 40B.For 17 meters, position 15. For 12meters, position 10.B. Set the multimeter switch to the Epposition.C. After the wait LED goes out, place theSTANDBY/OPERATE switch toOPERATE. The STANDBY/ OPERATEswitch will light and high voltage isindicated on the multimeter (nominal3000 VDC).D. Set the meter switch to the Is position.Always monitor Is (screen grid current)with the multimeter during tune up. UseFWD and REF positions momentarily forchecking output power. Output powercan also be monitored on the LEDbargraph power meter. Always monitorthe overdrive LEDs. Reduce drive and re-tune the amplifer if either is lit.E. For initial tune up you may set the TUNEand LOAD controls to their centerpositions. Alternatively you may refer tothe suggested settings in the chart inFigure 2-1. Keep in mind that thesesettings are for operation into an ideal 50ohm load and will vary with yourinstallation.F. Turn the transceiver RF output control tobetween 10 and 20 watts. Note: at verylow transceiver power outputs (<10 watts)the amplifier may not respond whenattempting to tune up. This is normal.Increase drive power slightly and continuetune up. IF AT ANY TIME THE TITANIII DOES NOT RESPOND ASEXPECTED, REMOVE DRIVE POWERIMMEDIATELY AND CORRECT THEPROBLEM BEFORE CONTINUING.G. Key the transceiver and slowly increasethe drive power until you see the platecurrent increase.H. Adjust the TUNE control for a peak inscreen grid current and a peak in RFpower output. Adjust the LOADcontrol for minimum screen gridcurrent consistant with desired poweroutput. You will find that these valuesare not always synchronized. Choosethe lower grid current adjustment evenif the power output is slightly less.Readjust the TUNE control for ascreen grid current and power outputpeak each time you adjust the LOADcontrol. There will be someinteraction between these controls.I. Gradually increase the drive levelfrom the transceiver until you reachthe desired output power level whilecarefully touching up the LOAD andTUNE controls for minimum screengrid current and maximum outputpower, respectively. NEVEREXCEED 75 MILLIAMPS SCREENGRID CURRENT.J. Once you have the amplifier tuned upand operating on the desiredfrequency, you can log the LOAD andTUNE settings in the chart provided(Figure 2-2). These settings should berepeatable for the same frequency,antenna, and SWR when used in thefuture.
2-5BAND FREQUENCYMHz LOAD TUNE160A160B1.8201.9806.144.15.580 / 753.5003.9808.75.57.54.740A40B7.04010.1203.621.612014.05014.2501.51.41.51.11518.11021.0502.11.45.21.5121024.90028.1002.51.64.2.5FIGURE 2-1 MODEL 417 TUNING CHARTFOR AN IDEAL 50 OHM LOAD
2-6 BAND FREQUENCY LOAD TUNE ANTENNA NOTES FIGURE 2-2 MODEL 417 TUNING LOG
2-7FIGURE 2-3 TITAN III FRONT VIEWFIGURE 2-4 TITAN III REAR VIEW
2-8FIGURE 2-5 TITAN III TOP VIEW
2-9FIGURE 2-6 TITAN III BOTTOM VIEW
3-1CHAPTER 3OPERATION AND SAFETY3.1 INTRODUCTION: The following paragraphs provide additional information for operationof and safety from your TITAN III amplifier.3.1.1 HIGH POWER TETRODES: The 4CX800As are very rugged and normally operatewith a large margin of safety in the TITAN III. They will deliver outstanding service for manyyears if not damaged by abuse...especially excessive grid current or blockage of cooling air flow.3.1.2 INTERLOCKS: The TITAN III is equipped with interlock switches intended to shut offthe power and short out the high voltage power supply when the cover is not securely fastened inplace. These protective interlocks are provided to protect you from POTENTIALLY FATALELECTRIC SHOCK resulting from accidental contact with lethal voltages inside the amplifier.However, you should never depend on interlocks alone to protect you by removing dangerousvoltages. ALWAYS DISCONNECT THE AC LINE CABLE TO THE TITAN III BEFOREREMOVING THE TOP COVER.3.1.3 FUSES: Except in rare instances of component failure, blowing one or both primary fusesindicates that maximum safe average power capabilities of the amplifier have been exceeded.KEEP THE AIR INTAKE AND EXHAUST VENT AREASCOMPLETELY CLEAR !!!WARNING !!! DO NOT ALLOW THE SCREEN GRID CURRENT TOEXCEED 75 mA!WARNING !! THE AMPLIFIER SHOULD NEVER BEENERGIZED WITH THE COVERS REMOVED!!DO NOT DEFEAT THE INTERLOCK SAFETYSWITCHES!!
4-1CHAPTER 4MAINTENANCE AND TROUBLESHOOTING4.1 INTRODUCTION: If you encounter aproblem, the troubleshooting hints listed inTABLE 4-1 below will help isolate thenature of the problem.4.2 MAINTENANCE: The amplifiercompartment, particularly areas around highvoltage components should be cleaned often(using a soft bristled brush and vacuumcleaner) to prevent visible accumulation ofdust. DO NOT blow air directly into the faninput: this can over rev the motor anddamage the bearings.SYMPTOM POSSIBLE CAUSE/CURE1. Will not turn on: nothing happenswhen the ON switch is activated. A] Fuse missing or open.B] House wiring incorrect or breaker open.C] Power cable to amplifier disconnected.D] Fuse on HV-AC board A9 (81945) open.E] Problem with low voltage power supplyon QSK board A11 (81949)2. Lights turn on but no high voltage. A] No HV will be present until amp isswitched to OPERATE mode (and timed out).3. Relays A9K2 and A9K3 on 81945 HV-AC board close but relay K1 does not.Plate Voltage drops when RF is applied.A] A9Q1 on 81945 HV-AC board isdefective.B] A9K1 on 81945 is defective.4. Relays A9K1, A9K2, A9K3 on 81945HV-AC board close but no high voltagewhen switched to OPERATE mode.A] Interlock open, cover not tightB] A9K2, A9K3 defective.C] HV short to ground.D] High voltage transformer disconnected.E] High voltage bridge open.TABLE 4-1 TROUBLESHOOTING HINTS
4-2TABLE 4-1 TROUBLESHOOTING HINTS (Continued)5. Relays A9K1, A9K2, and A9K3 close at turnon, but line fuses blow. A] High voltage shorted at crowbar orelsewhere.B] Shorted tube.C] Leaky electrolytics in high voltage supply.6. Amplifier won’t drive, zero grid and platecurrent, high input SWR . A] Defective cable from transceiver toamplifier.B] Input relay A4K2 on 81951 SWR boarddefective.C] Input filter A7 or A8 on 81946 InputMatching board (A6) loose or damaged.7. Grid overdrive LED lights with no drive. A] A10Q7 on 81950 Screen Supply shorted orleaky.B] Shorted or leaky tube.8. Screen overdrive LED lights with no drive. A] A10R23 on 81950 Screen Supply open orincreased in value.B] Low or no high voltage. TURN OFF THEAMPLIFIER IMMEDIATELY.9. Amplifier difficult to drive, little or no output,high plate current (may be accompanied by a“frying sound”).A] Band switch in wrong position.B] Excessively high load SWR.C] Defective output relay A4K1 on 81951SWR board.D] Arcing in tank circuit or antenna feedline.10. Excessive plate current in receive mode. A] Defective bias circuit, 81950 board (A10).B] Shorted grid /cathode in tube.11. Transceiver does not key using key-in/key-out loop. A] Key-in and key-out lines reversed atamplifier or at transceiver.B] Defective key line cables.C] Defective relay control circuit on 81949QSK board (A11).12. Transceiver stays keyed in receive mode.May be accompanied by loss of receive signal. A] Relay A4K1 on 81951 SWR board stuck.B] Shorted key-in or key-out cable.C] Defective relay control circuit on 81949QSK board (A11).
5-1CHAPTER 5CIRCUIT DESCRIPTIONS AND ILLUSTRATIONS5.1 INTRODUCTION The following sections contain detailed circuit board subassembliesused in the model 417. Also included are circuit trace drawings and detailed componentlayout diagrams. These drawings are followed by a schematic diagram for the completeamplifier.5.2 INPUT MATCHING BOARD A6(81946) This board contains the inputfilter, impedance matching networks, andALC circuits. The 15M INPUT FILTER BOARD A7(81953) is the standard input filter shippedwith the TITAN III. This is a five poleelliptic filter consisting of L1, L2, L3, C1,C2, and C3. This filter provides increasedroll-off of frequencies above the 15 meterband. An optional 15/10M INPUTFILTER BOARD A8 (81954) is availablefrom TEN-TEC to qualified amateur radiooperators, upon receipt of a copy of theiramateur radio license. Note: Operation on the 10 meter bandwill also require additional modifica-tions to the bandswitch assembly. Pleasecontact the factory for instructions orfurther information. The impedance matching network ofR4–R12 and L3 on assembly A6 matchesthe input impedance of the 4CX800As tothe input filter board. The ALC circuit on A6 samples theinput RF power to the amplifier. A6D1rectifies this sample and produces anegative voltage proportional to inputpower for control of some exciters. TheALC threshold is set by potentiometerA11R52, located on the rear panel. Turnthis control fully clockwise if ALC is notused.
5-2FIGURE 5-1 INPUT MATCHING BOARD (ASSEMBLY A6) CIRCUIT TRACEAS VIEWED THROUGH BOARDFIGURE 5-2 INPUT MATCHING BOARD (ASSEMBLY A6)COMPONENT LAYOUT TOP VIEW
5-3H.V. POWER SUPPLY BOARD A2 (81944) This board contains the high voltage rectifierbridge (D1 – D20), H.V. filters (C1 – C8 and C14), and H.V. meter circuits.FIGURE 5-3 HIGH VOLTAGE RECTIFIER BOARD (ASSEMBLY A2)CIRCUIT TRACE AS VIEWED THROUGH BOARDFIGURE 5-4 HIGH VOLTAGE RECTIFIER BOARD (ASSEMBLY A2)COMPONENT LAYOUT TOP VIEW
5-45.4 SCREEN SUPPLY AND GRID BIAS BOARD A10 (81950) This board contains thescreen supply, grid bias supply, and protective circuits for the 4CX800As. The screenvoltage is rectified by diodes D4 – D7 and filtered by C1 – C3 and C15. This DC voltage isthen regulated by pass element Q8. Load resistors R25 – R27 provide a current drain toinsure screen current remains in the positive direction. MOV Z1 protects the power supply inthe event of tube arc and insures the screen voltage can’t surge above 450 VDC. R23provides a voltage drop proportional to the screen current to drive the front panel screencurrent meter. Grid bias voltage is rectified by D13, then filtered by C10. Q1 senses the key conditionand via Q2 and Q4 switches zener diodes D2, D8 and D16 in during key down and out duringkey up. This zeners the bias voltage to approximately –55 VDC during TX and –100 VDC inRX. Due to differences in tubes, J21 allows adjustment of grid bias in 4 settings:-47V Pins 1 and 3 shorted-55V Pins 2 and 3 shorted-60V Pins 1 and 2 shorted-68V no pins shortedThis adjustment is factory set to match the tubes shipped with the amp. If the tubes are everreplaced, the jumper setting should be selected to produce approximately 200 – 400 mA ofplate current when keyed with no drive. The circuitry of Q7 senses grid current and begins tofold back grid bias toward cutoff as grid power approaches 2 watts. Zener diode D1 providesregulation for the negative 16 VDC power supply to run the meter circuits on the meterswitch board and the relay hot-shot circuit on the SWR board.FIGURE 5-5 SCREEN SUPPLY BOARD (ASSEMBLY A10)COMPONENT LAYOUT TOP VIEW
5-5TOP SIDE COPPERBOTTOM SIDE COPPERFIGURE 5-6 SCREEN SUPPLY (ASSEMBLY A10) CIRCUIT LAYOUTVIEWED THROUGH BOARD FROM TOP
5-65.5 QSK BOARD A11 (81949) This board contains the low voltage supply, turn-on relaysequencing circuits, and T/R relay control. The low voltage is rectified by D1 – D4 and filtered by C6. U1 and Q2 provide regulationfor all low voltage circuits except the negative 16 VDC supply. After a 3 minute warm-up period determined by RC time constant of R4 and C5,Q19 andQ11 will conduct, turning on the pass element Q7. This initiates amplifier power up. When the STANDBY/ OPERATE switch is put in the OPERATE position, this voltage isapplied to relay sequencing circuits Q3, Q6, Q4 and Q10. These circuits insure plate andscreen voltages arrive at and leave the tube in the proper order. Q20 senses plate current and disables the amplifier when plate current parameters areexceeded (such as excessive plate current during a tube arc). Both plate voltage and screenvoltage are removed when plate current of 1.5A is reached. The QSK CONTROL CIRCUIT consists of Q12-Q18 and Q21-Q23. This circuit samplesinput key requests, standby/operate modes, power on/off state, state of output relay, and RFpresence at the antenna connection and input of the amp. Hot switch protection is providedregardless of mode. In the QSK mode, using the key in / key out loop, the key in requestfrom the transceiver is tailored by the QSK CONTROL circuit to insure smooth QSK actionof the input and output relays. K2 senses power OFF or STANDBY and places the key circuit in bypass for operation inbarefoot mode. K3 senses OPERATE mode and routes the key request to the amplifier control circuits. K4 passes the “key in” to the KEY OUT jack when all relays are closed and ready for RF.FIGURE 5-7 QSK BOARD (ASSEMBLY A11) COMPONENTLAYOUT TOP VIEW
5-7FIGURE 5-8 QSK BOARD (ASSEMBLY A11) TOP AND BOTTOMCIRCUIT TRACES VIEWED THROUGH BOARD FROM TOP
5-85.6 SWR BOARD A4 (81951) This board contains the input relay K1, output relay A14, hot-shot speed-up circuit Q3-C19, and the SWR bridge T1 for output power sampling.FIGURE 5-9 SWR BOARD (ASSEMBLY A4) CIRCUIT TRACEVIEWED THROUGH BOARD FROM TOPTOP COPPERBOTTOM COPPERFIGURE 5-10 SWR BOARD (ASSEMBLY A4)COMPONENT LAYOUT TOP VIEW
5-95.7 PLATE BOARD A3 (81948) This board contains the parasitic suppressors and couplingcapacitors to connect the 4CX800A plates to the amplifier tank circuit.FIGURE 5-11 PLATE CONNECTOR BOARD (ASSEMBLY A3)CIRCUIT TRACE VIEWED THROUGH BOARDFIGURE 5-12 PLATE CONNECTOR BOARD (ASSEMBLY A3)COMPONENT LAYOUT TOP VIEWR1R2R3R4R5R6R7R8R9R10C1C2C3C4
5-105.8 METER/SWITCH BOARD A12 (81947) and DISPLAY BOARD A13 (81952) This board contains the metering circuits for the front panel meters. A12S1 selects theparameter to be monitored. This selection is then sent to multimeter M1. The multimeter hasthree calibrated scales for measuring plate voltage, screen current and forward or reflectedRF power. The KW scale should be divided by ten when measuring reflected power. A12U1 samples screen and control grid current and drives the appropriate LED to indicateexcessive current of either screen or control grid. Q1 samples forward RF power voltagefrom the SWR board. This voltage is peak-held by C8 and sent to U2 to drive the peakreading display LEDs on DISPLAY BOARD A13.FIGURE 5-13 METER/SWITCH BOARD (ASSEMBLY A12) COMPONENTLAYOUT VIEWED FROM FRONT PANEL SIDEFIGURE 5-15 DISPLAY BOARD (ASSEMBLY A13) COMPONENTLAYOUT AND TOP CIRCUIT VIEWED FROM TOPU1 GRN1U2 GRN U3 GRN U4 GRN U5 GRN U6 GRN U7 RED
5-11COMPONENT SIDE COPPERFIGURE 5-14 METER/SWITCH BOARD (ASSEMBLY A12)CIRCUIT VIEWED THROUGH BOARD FROM FRONT PANELSOLDER SIDE COPPER
5-12FIGURE 5-16 DISPLAY BOARD (ASSEMBLY A13) BOTTOM CIRCUITVIEWED THROUGH BOARD FROM TOP5.9 AC LINE DELAY BOARD A9 (81945) This board contains the step start relays andassociated circuitry to control inrush current while the H.V. filter capacitors charge.FIGURE 5-17 AC LINE DELAY BOARD (ASSEMBLY A9)COMPONENT LAYOUT TOP SIDE VIEWU1 GRN1U2 GRN U3 GRN U4 GRN U5 GRN U6 GRN U7 RED
5-13TOP COPPERBOTTOM COPPERFIGURE 5-18 AC LINE DELAY BOARD (ASSEMBLY A9)CIRCUIT TRACE TOP VIEW THROUGH BOARD
5-145.10 LOAD SHUNT BOARD A5 (81943) This board contains some of the extra loadcapacitance needed for the tank circuit on the 160M band. Capacitance is paralleledacross the variable load capacitor on bandswitch positions 160A, and 160B, and 80.FIGURE 5-19 LOAD SHUNT CAP BOARD (ASSEMBLY A5)CIRCUIT VIEWED THROUGH BOARD FROM TOPBOTTOM COPPERTOP COPPERFIGURE 5-20 LOAD SHUNT CAP BOARD (ASSEMBLY A5)COMPONENT LAYOUT TOP VIEW81943 Assembled78254 Rev AC1C2C3C4C5C6C7C8C9C10C11C12
5-15FIGURE 5-21 SCHEMATIC DIAGRAM MODEL 417
6-1CHAPTER 6MASTER PARTS LISTMODEL 417CHASSIS MOUNTED PARTS A1ITEM DESCRIPTIONT1 HV TRANSFORMERT2 LV TRANSFORMERBLOWER CENT. BLOWERS1 SHORTING BARS2 INTERLOCK SWS3 ON-OFF SWS4 STBY-OPR SWS5 QSK –PTT SWS6 BAND SWL1 P/O TANK COIL-1L2 P/O TANK COIL-1L3 TANK COIL-2L4 10M PI COILL5 15/10M PLATE MATCHL6 PLATE CHOKEC1A C1B TUNE CAPACITORC2 LOAD CAPACITORC4 150pF 5KV N750C5 150pF 5KV N750C6 .01uF 1KVC8 .01uF 1KVC10 400pF 7.5KV N3300P3 AC PLUGV1 V2 4CX800A TETRODEV1/V2-S TUBE SOCKETS W/BYPF1-F2 20 ABS FUSEFUSE HOLDER6:1 VERNIERTUBE RETAINERBAR KNOBLOAD-TUNE KNOBDIAL SKIRTMETER SW KNOBBAILRT BAIL FOOTLF BAIL FOOTREAR FEETHOLE PLG - MTR ADJTEN-TEC PART #81859 FROM 211992119838305936903206332128321293213098545 FROM 3214485427-285427-285427-385427-685427-485427-12352023526232972329723013230132330035153255132708427038270093814638265340588160191209-1CU805299117890926909254202042044
6-2AC LINE BOARD A981945ITEM DESCRIPTIONC1 .01uF 1KVC2 .01uF 1KVC3 1uF 50VC4 .01uF 1KVK1 RELAY SPSTK2 RELAY SPSTK3 RELAY SPSTCOVER, RELAYQ1 MPSA14R1 33KR2 100KR3 22KR4 10 25WF1 F2 1.5 AMP MDL TEN-TEC PART #2301323013232642301332067320673206732072252533015530161301543031027018INPUT MATCHING BOARD A681946C1 15pF 1KVC2 .01uFC3 100pFC4 .01uF 1KVD1 1N4148FL1/A7 15M INPUT FILTERL1 L2 1MHL3 COIL-TOROID, .7uHR1 100KR2 10KR3 150K 2WR4 470 7WR5 470 7WR6 470 7WR7 47 OHM 2WR8 47 OHM 2WR9 47 OHM 2WR10 47 OHM 2WR11 47 OHM 2WR12 50 OHM 90WATT2337223260230132338528001819532113585427-7301613015030311307213072130721304083040830408304083040830223
6-3METER-SWITCH BOARD A1281947ITEM DESCRIPTIONC1 .01uFC2 .01uFC3 .01uFC4 .01uFC5 .01uFC6 .1uFC7 .01uFC8 1uF 50VC9 .01uFC10 .01uFC11 .1uFC12 .1uFC13 .01uFC14 .01uFC15 .01uFC16 .01uFC17 .01uFC18 .01uFC19 .01uFC20 .01uFC21 .01uFC22 .01uFC23 .1uFC24 .01uFC25 .01uFD1 LEDD2 LEDD3 LEDD4 1N4148M1 MULTIMETER 1mAM2 PLATE METER 1mAQ1 2N4124R1 10K TRIMPOTR2 10K TRIMPOTR3 10K TRIMPOTR4 1MR5 1KR6 10KR7 10KR8 47KR9 1KR10 1MR11 10K TRIMPOTTEN-TEC PART #23260232602326023260232602326123260232642326023260232612326123260232602326023260232602326023260232602326023260232612326023260280242802428024280019854098544252583003830038300383017330138300383003830157301383017330038
6-4ITEM DESCRIPTIONR12 4.7KR13 2.2KR14 330R15 1.5KR16 100KR17 100KR18 100KR19 10K TRIMPOTR20 100K PC ADJR21 100K PC ADJR22 10K TRIMPOTR23 100K TRIMPOTSW1 METER SWU1A P/O LM393U1B P/O LM393U2 LM3914TEN-TEC PART #30146301423013230140301613016130161300383062030620300383019898449 FROM 32050252602526025101PLATE BOARD A381948C1 .001uF 6KVC2 .001uF 6KVC3 .001uF 6KVC4 .001uF 6KVL1 L2 PARASITIC SUPR1-R5 150 2WR6-R10 150 2W2329523295232952329585427-53040730407QSK BOARD A1181949C1 4.7uF 35VC2 .1uFC3 1uF 50VC4 33uF 16VC5 33uF 16C6 4700uF 35VC7 1uF 50VC8 .1uFC9 10uF233102326123264233082330823191232632326123266
6-5ITEM DESCRIPTIONC10 10uFC11 10uFC12 .01uFC13 .01uFC14 .01uFC15 .01uFC16 .01uFC17 .01uFC18 .01uFC19 .01uFC21 .01uFC22 .01uFC23 .56uFC24 1uF 50VC25 .01uFC26 .01uFC27 .1uFD1 1N5401D2 1N5401D3 1N5401D4 1N5401D5 1N4148D6 1N4148D7 1N4148D8 1N4148D9 1N750 4.7V ZENERD10 1N4148D11 1N4148D12 1N4148D13 1N4148D14 1N4148K1 SCRN RELAYK2 KEY/OFF RELAYK3 OP/STBY RELAYK4 KEY_OUT RELAYL1 100UHQ1 MPSW01Q2 MJE371Q3 MJE371Q4 MJE371Q5 MJE371Q6 2N4124Q7 2N4124Q8 2N4124Q9 2N4124Q10 MPSW01Q11 2N5060 SCRTEN-TEC PART #2326623266232602326023260232602326023260232602326023260232602333123263232602326023261280472804728047280472800128001280012800128058280012800128001280012800132103321203212032081210602502325105251052510525105252582525825258252582505325039
6-6ITEM DESCRIPTIONQ12 MPSW01Q13 2N4124Q14 2N4124Q15 2N4124Q17 2N4124Q18 2N4124Q19 2N6027 UJTQ20 2N5087Q21 2N4124Q22 2N5087Q23 2N4124R1 1KR2 1KR3 10KR4 3.9MR5 1KR6 1KR7 1.5KR8 1KR9 1KR10 1KR11 1KR12 10KR13 10KR14 10KR15 22KR16 22KR17 22KR19 47R20 10KR21 1KR22 1.5KR23 10KR24 10KR25 2.2KR26 10KR27 100R28 1KR29 8.2KR30 2.2KR31 10KR32 10KR34 10KR35 270R37 10KTEN-TEC PART #250532525825258252582525825258251852500125258250012525830138301383015030180301383013830140301383013830138301383015030150301503015430154301543012230150301383014030150301503014230150301263013830149301423015030150301503013130150
6-7ITEM DESCRIPTIONR38 10KR39 10KR40 10KR41 10KR42 10K TRIMPOTR43 10KR45 10KR46 2.2KR47 4.7KR48 10KR49 10KR50 10KR51 4.7KR52 10K ALC POTU1 LM7812TEN-TEC PART #301503015030150301503061930150301503014230146301503015030150301463026725232SCREEN SUPPLY BOARD A1081950C1 100uF 160VC2 100uF 160VC3 100uF 160VC7 .01uF 1KVC8 10uF 25VC9 33uF 16VC10 100uF 160VC11 10uF 50VC12 .1uFC13 .1uFC14 .1uF 250VC15 100uF 160VC16 .1uF 250VC17 .01uFC18 10uF 25VC19 10uF 25VC20 .01uFC21 .01uF 1KVD1 1N5246 16V ZENERD2 1N756 8.2V ZENERD4 1A 1KVD5 1A 1KVD6 1A 1KV2351623516235162301323266233082351623266232612326123006235162300623260232662326623260230132814128019281222812228122
6-8ITEM DESCRIPTIOND7 1A 1KVD8 1N5368 47V ZENERD9 1N5363 30V ZENERD10 1N5363 30V ZENERD11 1N5383 150V ZENERD12 1N5383 150V ZENERD13 1N4007D14 1N751 5.1V ZENERD15 1N4148D16 1N964 13V ZENERL1 100uH 100mAQ1 2N4124Q2 2N4124Q3 MPSA92Q4 MPSA92Q7 2N6517Q8 IRF830R1 15KR2 4.7KR3 100KR4 100KR5 10KR6 10KR7 100KR8 10KR13 12K 2WR14 3.3K .5WR17 4.7K 7WR18 680K .5WR19 680K .5WR20 680K .5WR21 680K .5WR22 22KR23 150 2WR24 100 OHM TRIMPOTR25 4.7K 7WR26 4.7K 7WR27 4.7K 7WR28 47 OHM 2WR29 10 OHM .5WZ1 MOVTEN-TEC PART #2812228136281342813428135281352804328041280012801021060252582525825107251072539325514300763014630161301613015030150301613015030324300273071930066300663006630066301543040730617307193071930719304083002230718
6-9SWR BOARD A481951ITEM DESCRIPTIONC1 3-22pFC2 .01uFC3 .01uFC4 1uF 50VC5 1uF 50VC6 330pFC7 10pFC8 10pFC9 18pFC10 18pFC11 .01uFC12 .01uFC13 .01uFC14 .01uFC15 .01uFC16 .01uFC17 .01uFC18 1000uF 35VC19 .1uF FILMD1 1N4148D2 1N4148D3 1N4148D4 1N4148D5 1N4148D6 1N4148D7 1N4148D8 1N4148D9 1N4007D10 1N4007D11 1N4007D12 1N4148D13 1N4148D14 1N4007K1 REED RELAYL1 1mH RFCL2 1mH MOLDEDTEN-TEC PART #231692326023260232642326423397233712337123373233732326023260232602326023260232602326023200233282800128001280012800128001280012800128001280432804328043280012800128043320492113521007
6-10ITEM DESCRIPTIONL3 2.2uHL4 15uHL5 1mH RFCQ1 2N6517Q2 2N4124Q3 MPSA14R1 47 OHM 2WR2 330KR3 680R4 330KR6 10KR7 330KR8 4.7KR9 100KR10 100KR11 100KR13 10KR14 100KR15 10KR16 270R17 10KT1 SWR XFMRTEN-TEC PART #21116211262113525393252582525330408303023013630302301503030230146301613016130161301503016130150301313015085380-15RELAY BOARD A1481959K1 OUTPUT RELAYRELAY PCB3210178270LOAD CAP SHUNT BOARD A581943C1 – C9 150pF 3KV COGC10 – C12 150pF 3KV COG2354223542

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