DJ768FTT417

i TABLE OF CONTENTS TABLE OF CONTENTS LIST OF ILLUSTRATIONS SPECIFICATIONS WARNING NOTICES 10 METER OPERATION INTRODUCTION UNPACKING i-ii iii-iv v-vi vii vii viii ix 1 INSTALLATION 1.1 INTRODUCTION 1.2 ELECTRICAL CONNECTIONS 1.3 HIGH VOLTAGE TRANSFORMER INSTALLATION 1.4 TRANSCEIVER INTERCONNECTIONS 1.5 ANTENNA REQUIREMENTS 1.6 GROUND CONNECTION 1.7 HIGH POWER OPERATION 1.8 ALC 1.9 COOLING SYSTEM 1-1 1-1 1-1 1-2 1-2 1-2 1-2 1-3 1-3 2 OPERATING INSTRUC TIONS 2.1 INTRODUCTION 2.2 FRONT PANEL CONTROLS 2.2.1 BAND SWITCH 2.2.2 TUNE 2.2.3 LOAD 2.2.4 POWER 2.2.5 OPR-STBY 2.2.6 QSK-PTT 2.2.7 MULTI-METER SWITCH 2.2.7.a Ep 2.2.7.b Is 2.2.7.c FWD 2.2.7.d REF 2.2.8 PLATE CURRENT METER 2.2.9 OVERDRIVE 2.2.10 WAIT 2.2.11 PEAK POWER BARGRAPH 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-2 2-2 2-2 2-2 2-2 2-2 2-2 ii 2.3 REAR PANEL CONNECTIONS AND CONTROLS 2.3.1 TRANSCEIVER 2.3.2 ANTENNA 2.3.3 KEY IN 2.3.4 KEY OUT 2.3.5 PTT/VOX 2.3.6 ALC 2.3.7 ALC CONTROL 2.3.8 AC LINE 2.3.9 LINE FUSES 2.4 INITIAL TURN-ON 2.5 TUNE – UP PROCEDURE 2.5.1 CHECKS TO MAKE BEFORE TUNING UP 2.5.2 IMPORTANT POINTS TO REMEMBER 2.5.3 SUGGESTED TUNE – UP PROCEDURE 3 OPERATION AND SAF ETY 3.1 INTRODUCTION 3.1.1 TUBES 3.1.2 INTERLOCKS 3.1.3 FUSES 4 TROUBLESHOOTING 4.1 INTRODUCTION 4.2 MAINTENANCE 5 CIRCUIT DESCRIPTIO NS AND ILLUSTRATIONS 5.1 INTRODUCTION 5.2 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 and A13 (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 AMPLIFIER 6 MASTER PARTS LIST 2-2 2-2 2-2 2-2 2-2 2-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-4 3-1 3-1 3-1 3-1 4-1 4-1 5-1 5-1 5-1 5-3 5-4 5-6 5-8 5-9 5-10 5-12 5-14 5-15 6-1 iii LIST OF ILLUSTRATIONS FIGDESCRIPTIONPAGE 1-1 T/R CONNECTIONS FOR TEN-TEC TRANSCEIVERS WITH TX OUT AND TX EN 1-2 T/R CONNECTIONS FOR OTHER TRANSCEIVERS 2-1 MODEL 417 TUNING CHART 2-2 MODEL 417 TUNING LOG 2-3 MODEL 417 FRONT PANEL 2-4 MODEL 417 REAR PANEL 2-5 MODEL 417 TOP VIEW 2-6 MODEL 417 BOTTTOM VIEW 4-1 TROUBLESHOOTING HINTS 1-4 1-4 2-5 2-6 2-7 2-7 2-8 2-9 4-1 ASSEMBLY A6 (81946) INPUT MATCHING BOARD 5-1 CIRCUIT TRACE 5-2 COMPONENT LAYOUT ASSEMBLY A2 (81950) H.V. POWER SUPPLY BOARD 5-3 CIRCUIT TRACE 5-4 COMPONENT LAYOUT ASSEMBLY A10 (81950) SCREEN SPLY / GRID BIAS BOARD 5-5 COMPONENT LAYOUT 5-6 CIRCUIT TRACE ASSEMBLY A11 (81949) QSK BOARD 5-7 COMPONENT LAYOUT 5-8 CIRCUIT TRACE ASSEMBLY A4 (81951) SWR BOARD 5-9 CIRCUIT TRACE 5-10 COMPONENT LAYOUT ASSEMBLY A3 (81948) PLATE CONNECTOR BOARD 5-11 CIRCUIT TRACE 5-12 COMPONENT LAYOUT 5-2 5-2 5-3 5-3 5-4 5-5 5-6 5-7 5-8 5-8 5-9 5-9 iv ASSEMBLY A12 (81947) METER/SWITCH BOARD 5-13 COMPONENT LAYOUT 5-14 CIRCUIT TRACE ASSEMBLY A13 (81952) DISPLAY BOARD 5-15 COMPONET LAYOUT & TOP CIRCUIT 5-16 BOTTOM CIRCUIT TRACE ASSEMBLY A9 (81945) AC LINE / DELAY BOARD 5-17 COMPONENT LAYOUT 5-18 CIRCUIT TRACE ASSEMBLY A5 (81943) LOAD SHUNT BOARD 5-19 CIRCUIT TRACE 5-20 COMPONENT LAYOUT 5-21SCHEMATIC DIAGRAM, MODEL 417 5-10 5-11 5-10 5-12 5-12 5-13 5-14 5-14 5-15 v SPECIFICATIONS MODEL 417 BAND COVERAGE POWER OUTPUT DRIVING POWER PLATE EFFICIENCY INPUT AND OUTPUT IMPEDANCE HARMONICS CW BREAK-IN PROTECTIVE CIRCUITS PRIMARY POWER LINE PROTECTION TUBES COOLING 160, 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 watts RTTY/SSTV (continuous duty cycle modes) for up to 10 minutes on 160, 80, 40, 20, 15, and 10 meter bands (750 watts on WARC bands 30, 17, and 12 meters). 60 watts typical for 1500 watts output. Up to 65% depending on band, frequency, line voltage and impedance load. 50 ohms unbalanced with VSWR <2:1 Meets or exceeds FCC requirements. Built-in T/R switching in less than 7 ms. A.) Screen grid voltage regulation, current limiting, over voltage protection and MOV arc over protection. LED over-current indication. B.) Control grid voltage regulation, current limiting and LED over-current indication. C.) Plate current over-current trip at 1.5 amps. Series resistor for arc absorption. 240 VAC –10%/+5% @ 20 amps, 50/60 Hz Primary line fuses, chassis interlock, and step-start inrush protection. Two Svetlana 4CX800A ceramic tetrodes in grid-driven configuration. Forced air, vertical exhaust, using centrifugal blower to produce .1” of water pressure drop at sea level, 25 degs. C air temperature. vi METERING FRONT PANEL CONTROLS STATUS INDICATORS PLATE VOLTAGE SUPPLY SCREEN SUPPLY CONSTRUCTION SIZE WEIGHT Full time plate current meter. Second meter selectable for screen grid current, plate voltage, forward power, and reflected power (x10). Peak forward power indicated on full-time LED bargraph display. TUNE and LOAD control knobs with 6:1 reduction drive. Rotary band switch and meter switch for screen grid current, plate voltage, forward or reverse power. Standby / Operate , QSK / PTT-VOX and Power on/off rocker 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 each 220 uF electrolytic filter capacitors. 10 ohm arc absorption 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) vii WARNING!!!!!!! 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 to 3000 volts and cause serious injury or death! CAUTION!!! Never attempt to operate the TITAN …

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MODEL 417 OPERATIONAL DESCRIPTION OF CIRCUITS FOR SUPPRESSION OF SPURIOUS RADIATION Refer to the schematic diagram (417sch.pdf) or figure 5-21 in the manual. 1. Assembly A3 components L1, L2, and R1 through R10 were selected to lower the plate circuit Q at VHF frequencies to prevent spurious outputs due to VHF parasitic oscillation. 2. Assembly A1 (main chassis) components C1A, C1B, and C2 in conjunction with L1 through L4 form a Pi-L network, which in addition to matching the tube plate, provides a lowpass filter response to reduce harmonic and high frequency spurious outputs. 3. Plate choke A1L7 and bypass capacitors C9, C10, and C12 on assembly A2 isolate the RF tank circuit to prevent leakage of the fundamental and harmonics back through the supply to the AC lines. The value and physical dimensions of L7 were selected to place a “suck-out” resonance at 26.9 MHz. Operation near this frequency will burn the choke and eventually disable the power supply. 4. Assembly A9 components C1 and C2 bypass the AC line to further reduce any RF leakage out of the amplifier via the AC lines.

TUNE UP INFO AND PARTS LISTS See the Users Manual Chapter 2 for tune up procedure and Chapter 6 for parts lists.

AA BB CC DD EE FF GG HH II JJ KK LL MM NN OO 10 10 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 417 AMPLIFIER 01/30/03 10M 10M 10M 10M LOAD TUNE S6AA S6AB S6B S6C BANDSWITCH S6 DRAWN IN 160A POSITION. CW ROTATION INDICATED. REAR WAFER CENTER WAFER FRONT WAFER CAP PADS 81943 160A 1 2,4,6 3 7 2,4,6 3 7 1 5 5 HVSHORTING BAR PLATE CHOKE C1-4 1nF,6KV HV1 250V PLATE V SAMPLE J3 HIGH VOLTAGE RECTIFIER BOARD 81944 6KV 6KV 6KV 2W2W 2W2W2W 2W 2W2W 2W 2W 2W 2W 2W 2W 2W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 0.5W 2W2W 400V 400V 400V 400V 400V 400V 400V 400V 400V S3 PWR ON/OFF 1KV 1KV ORN ORN SCREEN TRANSFORMER ORN BRN WHT BLK GRN GRN REDREDBLU BLU PLATE TRANSFORMER BLK BLU YEL REDRED RED AC LINE BOARD 81945 1 J22 BLU BLK BLK ON 1 1 J8 2200V 3000V PLATE -I SAMPLE 10M INPUT FILTER 81954 J2 J27 J15 TRANSCEIVER J24 P1P4 1 J14 FWD GND REV -16V J11 1 +12V RF SENSE INPUT SENSE RELAY SENSE RELAY POWER ANTENNA J16 FILM SWR BOARD 81951 REED METER/SWITCH BOARD +360V AC RELAY - SCRN RELAY+ SCRN LED SCRN RELAY - 1 -16V 1 1 WAIT LED 12V FIL- FIL+ 1 GRID LED J7 SCRNV GRIDV 1 0.5W IKV 250V 160V J20 160V 160V GND 160V 7W 1KV 13VAC 13VAC IN OUT 1 J11 13VAC QSK BOARD 81949 13VAC J1 1 SCRN RELAY+ -100V J9 BIAS ENABLE SCREEN SUPPLY BOARD 81950 GRID LIMIT SET J4 SCRN RELAY - 1 J21 BIAS ADJ -65V AC RELAY + AC RELAY + AC RELAY - J8J9 OPR - J6J10 OPR LIGHT GND GND DISP +12V PLATE FAULT uH 1 11 J5 S4 S2 INTLCK MJE ORN ORN QSK PTT GATE S5 KEY IN PTT SCRN -I KEY OUT J17 J18 J12 1 +12V RF SENSE INPUT SENSE RELAY SENSE RELAY POWER J11 1 12V TIMED DELAY TIME SET OPR + 240VAC P3 1KV SCRN LED -16V SCRN -I GRID LED 1 8 3 4 2 GRID 56 7 SCREEN PLATE FAULT WAIT LED GND WAIT J7 1 1 DISPLAY 81952 GRN GRN GRN GRN GRN RED RED FWD GND REV -16V 1 81947 1 S1B MULTIMETER S1A S1C Is J5 1 J3 PLATE V SAMPLE PLATE -I SAMPLE DISP +12V 1 DS2(M2) METER LAMPS U2 LM3914 J14 J4 A2 A3 A4 A5 A8 A9 A10 A11 A12 A13 1 CHASSIS MOUNTED PARTS ARE ASSEMBLY . A1 OPERATE 1 GND ALC ALC J13 J26 BAR CAL FWD CAL REV CAL Vp CAL CAL SCR LED SET GRID LED SET Is CAL SWR NULL BIAS ENABLE 250V INPUT MATCH BOARD 81946 GND RF INPUT ALC J13 A6 A7 J24 P1P2P3 1 J25 15M INPUT FILTER 81953 FIL- ALC POT J20 1 FIL+ SCRNV 90W GRIDV 1 S1 *C7, C9 ARE PART OF SK-1A SOCKET. FL1 P4 250V 1 GRID CALIB SO239 SO239 50V PLATE BOARD 81948 J23 371 REED J19 ALC POT 1 J25 1 Ip Ip 1 1 MULTI JA JB DS1(M1) CABLE WIRING / LABELING CONVENTION 1 1 Jn Jn 25V 420V 1 3 3 3 CABLE #n n n 2W (molded) 2W BLU WHT GRN BLK Ip FLT

 P7 P5 P6 J28 J28 A14 RELAY BOARD 81959 K1 C40.01 U2 R8 1K R7 1.5K D19 4007 R4-6 3X 470,7W C1 15pF L3 0.7,9T R21 1K C11 0.01 L1 100 R16 270 Z1 MOV Q74124 R6 10K L11mH U3 R45 10K R51 4.7K R322K C17 0.01 R27 4.7K,7W R25 4.7K,7W D1 16V R47 4.7K K2 C1A 100pF R26 4.7K,7W R22 10K U4 4CX800A V1 C13 0.1 C10 0.01 D12 4148 Q22 5087 U5 C1-9 1350pF C10 400pF Q5 R2 1K Q20 5087 C10-12 450pF R46 2.2K T1 R26 10K R24 10K R30 2.2K,0.5W D10 4148 U6 R24 100 R23 10K C7 0.01 C5 150pF C4 150pF D35401 R22 1.5K D15401D25401 D13 4148 R1-3 3X12 C10 0.01 D45401 Q76517 C23 0.1 U7 R28 47,2W + C10 10uF R25 2.2K C21 0.01 4CX800A V2 R52 10K + - M2 D14 5.1V D34148 R37 10K C13 0.01 C17 0.01 R810K + C71uF C25 0.01 Q3A14 C710pFC810pFR3680 C20.1 R4 10,25W C12 0.1 R41 10K R17 10K R4-6 3X12 + C51uF C12 0.1 C11 0.1 C19 0.1 + C41uF R4330K R2330K R9 1K D13 4148 D94.7V + C18 1000uF D2LED L3 L415uH C3 150pF C1 100pF C2 150pF R15 10K R84.7K P13 C12 0.01 + - U1B LM393 R49 10K R39 10K R41 1.5,5W R40 1.5,5W + C14.7uF P14 C11 0.01 R11 10K T2 Q2MJE371 C16 0.01 + C64700uF R19 47 D54148 D14 4007 + C910uF D44148 Q23 4124 L4 R20 10K Q94124 L30.44, 7T L1 0.33, 6T L2 0.33, 6T D44148 L1 100uH R9 1K C2220pF L1 0.33, 6T L2 0.27, 5T C1100pF C14 0.1 R30 2.2K L2 P3 Q12 W01 R17 22K R15 22K R10 1K R35 270 Q14 4124 R11 1K R20 100K R7 10K C23 0.56 R27 100 D3LED C14 0.01 Q64124 D17 4007 + C19 10uF + C18 10uF R1-5 150,2W L1 R6-10 150,2W L3 2.2uH L21mH D13 4007 D14148 R1 15K R24.7K R14 3.3K,0.5W R17 100K R3 100K C21 0.01 D1LED F220A R1 100K C20.01 C2 800pF F120A P5P6 + C4 33uF R310K R31 10K R32 10K C80.01 JP1 L7 R45 150K + C31uF C14 0.01 C12 1nF C9* 0.01 F1 1.5 A F2 1.5A D15 4148 C13 0.01 C50.01 Q14124 C19 0.01 D14 4148 + C933uF + C14 220uF C27 0.1 L51mH + C81uF R16 150K R1 150K R15 150K R44 150K U1LM7812 C7* 0.01 R3 150K R14 150K R13 150K R2 150K C11 0.1 + C533uF R210K R31 4.7K R5 1K R11 150K R4 150K R5 150K R12 150K C20.01C10.01 R6 150K R7 150K R10 150K R9 150K C13-22pF P7 R8 150K C19 0.01 R38 10K D12 4148 P9 C13 0.01 R2 10K R1 10K C70.01 R17 680K C26 0.01 Q18 4124 D847V D16 13V D28.2V R18 680K + C1220uF + C2220uF + C6220uF + C5220uF + C3220uF + C4220uF R20 680K R19 680K R7 100K C13 0.1 R28 1K + C7220uF + C8220uF R5 10K R23 680K R21 680K C91nF R22 680K R42 680K Q84124 C2 0.01 R24 680K R25 680K C10.01 R19 10K R16 100K R10 1M R34 10K K3 C6270pF R17 4.7K Q24124 L5 R48 10K + - M1 Z1MOV R23 100K R10 100K R11 100K D4P600JD1P600JD2P600JD3P600J Q17 4124 D6P600JD7P600JD5P600JD8P600J M1 BLOWER P16 R16 22K Q13 4124 D10 P600J D9P600J Q16517 R310K C15 0.01 D84148 D74148 K1 R6 10K R7-11 5X47,2W C11 0.01 C12 0.01 R42 10K R20 680K R21 680K R19 680K R18 680K L2 1mH C40.01 C15 0.01 P15 C15 0.01 C16 0.01 R12 10K R14 10K R13 10K + C1 100uF + C2 100uF + C15 100uF + C3 100uF R9 100K K1 + C31uF R2100K R133K D18 P600J D17 P600J D19 P600J C10 1nF Q8IRF830 Q3MJE371 D14148 Q1A14 R14 100K C20 0.01 D15 P600J D13 P600J D20 P600J D14 P600J R13 12K,2W R43.9M Q11 5060 Q19 6027 D2 4148 R13 2.2K D16 P600J P10P12P11 R35 680K D11 P600J D12 P600J C3 0.01 C20.01 R29 8.2K D5 4148 D64148 C90.01C30.01 C17 0.01 R31 680K R32 680K R33 680K R34 680K Q3A92 + C11 10uF K3 C25 0.01 R40 10K R12 10K R13 10K R29 680K R28 680K R30 680K R27 680K P6P5 K2 C22 0.01 K4 R50 10K + - U1A LM393 C16 0.01 Q24124 C1B 300pF R26 680K K1 P1 Q10 W01 P3P2 D64148 D11 4148 Q15 4124 D74148D84148 P4 L1 D94007 R847K Q1W01 D11 4007 D10 4007 V- V+ Rlo SIG Rhi Oref Iref MODE L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 R21 100K R7330K R1 1K C80.1 C24 0.01 R43 10,25W R36 1M,2W R37 1M,2W R38 1M,2W …

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TEST REPORT Page 1 of 4 Gain vs Frequency Model 417 BAND POS. FREQ P-in WATTS P-out WATTS GAIN dB HARMONICS dB 2 nd 3 rd 1.866150013.64565 160A 1.967150013.54665 1.972150013.25270 160B 2.070150013.35470 3.559150014.05870 80 4.058150014.15872 7.053150014.554>70 40A 7.358150014.165>70 7.059150014.062>70 40B 10.1260150014.058>70 14.060150014.058>70 20 14.3560150014.058>70 21.062150013.865>70 15 21.4561150013.966>70 DATA TAKEN BY: Lee Jones _ DATE: 9 Jan 03 _ TEST REPORT Page 2 of 4 27 MHz notch Model 417 DATA TAKEN BY: Lee Jones _ DATE: 9 Jan 03 _ 16 14 12 10 8 6 4 2 0 -2 -4 -6 -8 -10 -12 dB 16182022 242628303234363840MHz FCC SPEC TEST REPORT Page 3 of 4 Test setup Model 417 EQUIPMENT USED: 1. TEN-TEC model 564 transceiver, 100 watt output max 2. Bird model 43 wattmeter, 250 watt slug 3. Amplifier under test 4. Bird model 43 wattmeter, 2.5 KW slug 5. 40 dB hybrid coaxial line sampler 6. Bird model 8833 1 KW dummy load 7. 10 dB 50 ohm attenuator 8. Spectrum analyzer, Tektronics 7613, 7L-13, 0-1 GHz 9. Spectrum analyzer, HP 8552B, 8553B, 0-100 MHz EXCITER WATT METER 250W MODEL 417 AMPLIFIER WATT METER 2.5KW 40 Db HYBRID COUPLER 50 OHM DUMMY LOAD 10 dB PAD SPECTRUM ANAL. 0-1 GHz SPECTRUM ANAL. 0-100 MHz OR TEST REPORT Page 4 of 4 Linearity Model 417 DATA TAKEN BY: Lee Jones _ DATE: 4 FEB 03 _ 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.4 0.3 0.2 0.1 51015202530354045505560P in 1.5 1.6 P out 0.5 657075 7.2 MHz