Circuit Boards
Showing all 87 results
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QB-74-HAD-1
$25.00MCE / KDI Corporation SPST DIODE SWITCH 5-10 Ghz 80 dB Isolation 1.7 dB Loss 1.5 VSWR Max 100 nsec speed. Unused. Two available.
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VB-37-HASD-1
$50.00SP3T Diode Switch Reflective & Absorptive Freq. Range = 0.5-2 GHZ 80 dB Isolation 1.3 dB Loss 1.7 VSWR maximum 100 nsec speed. SMA connections. (O1Y) Unused. Two Available.
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2032-6371-00
$195.00MACOM 203X series 90 degree crossover. 2-18 Ghz .6Db insertion loss 50 Watt avg 3 Kw peak. 1.88"LX1.3"WX.12"H. Unused.
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7248
$7.504-5.3 MC Transmitter PA coil replacement part for ARC-5 COMMAND SET (B2S) Used Only.
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6032
$7.507-9.1 MC replacement part for T-22/ARC-5 COMMAND SET (B2S) Unused.
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5853
$7.50239 KC BFO Oscillator replacement part for R-24/ARC-5 COMMAND SET (B2S) Unused.
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Sale!
5855
$5.003-6 MC BFO oscillator 1415 KC replacement part for SCR-274/ARC-5 COMMAND SET (B2S) Unused.
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80061109
$14.95* VHF 116-150Mhz amplifier module from ITT transmitter produces 10 watts into 50 ohms. Amplifier is in cast aluminum box with metal covers. 5 transistor amplifier using one each of these TRW transistors: PT6705 PT6706 PT6707 PT6708 & PT6709. Has 118 – 150 Mhz tuneable filter. Includes schematic. 11×4.8×2.5 6 lbs sh.
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80061108
$14.99* UHF 225-400Mhz amplifier module from ITT T-1109 transmitter produces 10 watts into 50 ohms. Amplifier is in cast aluminum box with metal covers. Five transistor driver amplifiers and 3 two transistor amplifiers with combiners using these TRW transistors: 8/PT-6702 2/PT-6705 PT6656. Power required 20VDC. Also included is a 225-400 Mhz tuneable filter that is used between the driver and power amplifier section. Includes schematic. 11×4.8×2.5 6 lbs sh.
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NARDA2272-ZZ1
$34.50Variable Coaxial Directional Coupler 12.5 – 15 DB 1240- 1360 MHz. Type N connectors. unused
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SLO-12-000-1
$11.95Sola / Hevi-Duty – Over Voltage Protector; 6.2V-34V; Adjustable @ 8Amp; 1.50 x 1.55 x 0.56 Inches. Add Over voltage Protection to your power supply. (M1Y) Unused
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IC1603
$5.0016-Bit CD quality Stereo Sound for your ISA-Bus PC. Simple Plug-n-Play makes installation a snap. Compatible with Windows 95 Sound Blaster and other Sound Standards. Yamaha OPL-3 FM synthesizer for the stereo Audio Recording and Playback.Full Duplex support for stereo recording and playback simultaneously. (N2A) Unused 2 Lbs shipping
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OVP-12
$8.50Condor Over voltage Protection board 12 Amp intermittent 8 Amp continuous. 6.2 – 33 Volts adjustment range. Add Over voltage Protection to your power supply. (M1Y)
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PAXCDC30
$5.00The DeviceNet Option Card (PAXCDC30) is designed for the PAX series of meters. It fits into the Comms slot of any PAX meter and allows the meter to communicate with a DeviceNet bus. The card supports Polling Bit Strobe and Explicit Message Commands. The MAC ID and the Baud Rate are switch adjustable via a DIP switch. A bicolor LED is used to indicate the meter's status in relationship to the bus. Made by Red Lion. Unused
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CRY-OVN-CBL
$6.00RF Cable fits board and has BNC female connector. Fits HP-10544A and HP-10811-60111. (R1Z)
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HP-10544A
$69.00* 10 MHz Crystal Oscillator and Oven by Hewlett Packard. Power required +12VDC and 24VDC for oven. Tested for output may need adjustment. Removed from equipment. With info. 3x3x2 on 5×2.6 board. Minor rust spots. 3 lbs sh. (R1Z)
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10811-60111
$79.00* 10 MHz Crystal Oscillator and Oven by Hewlett Packard. Power required +12VDC and 24VDC for oven. Tested for output may need adjustment. Removed from equipment. With info. 3x3x2 on 5×2.6 board. Minor rust spots. (Similar to HP-10544A) 3 lbs sh. (R1Z) USED.
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NARDA22733-ZZ1
$25.00Coaxial Directional Coupler -10DB 4 – 8 GHZ with type N connector by Narda.
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CAV-160-ZZ3
$12.00* Approximately 160MHz driver cavity assembly. Each cavity is removeable for use in your project. Has four 6AK5 and one 6360 tubes. 6360 has IERC style heatsink tube shield. Includes schematic. 1 3/4" x 11 5/8" x 4 7/8" 4 lbs sh. (P1D) Used
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SMD-302123
$35.001700-2600 MHz WAVEMETER 20-turn vernier tunes in increments of 1. BNC connections; 1N21 diode output. On 3.5"W bracket; o/a 4.8"Hx2" 2 lbs sh. (N1YC2X)Used
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WAVE-1956
$19.00WAVEMETER p/o AM-1956/ GRC-50 Rx/Tx 1350.5-1849.5 MHz FM oscillators; cal book for tuning CHN # MAIN TUNE OUT FREQ & REC OSC. BNC connections; 3x3x9 5 lbs sh. Used
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3023
$25.00225-400 MHz DIRECTIONAL POWER DETECTOR used in AM-6155 UHF power amplifier. Rated 65 warrs forward; 15 watts reversed. Forward/reversed DC output proportional to output/mismatch; sub-mini connectors provided. This item has been used at VHF frequencies as a watt meter detector by connecting a meter and dummy load and calibrating the meter reading against a known wattmeter. "N" RF connections; 4.5x1x1.3 1 lb sh. Coaxial Dynamics, (P1Z,P2Y) Used
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Sale!
4-CAV-93
$29.50TRANSMITTER TRIPLER / PRESELECTOR CAVITY MODULE from TACAN system in 900-1100 MHz range. Consists of preselector and four silver-plated cavities originally gang-tuned using ball-chain drive (not available. Includes 4 each 7289 tubes not tested clean but as is. We typically find about 75% good. 10×7.5×2 7 lbs sh. Used (J2M)
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EF-T02
$6.00TRIPLEXER from cellular application by Fuji Electrochemical Co. Frequencies are as follows – Transmit: 835MHz Receive: 880MHz Lo: 784.36MHz. Has female push-on SMA connections for Transmit Receive and Lo and a female TNC connection for Antenna. Cast aluminum housing with a removable cover. o/a 4.3×1.5×0.8 2 lbs sh. Appears (N1Y) unused
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AFF-PS
$15.00MODULE powered both above modules; has switching supplies Calex #24S12 (24 VDC in to 12 VDC 1.7 A out) and #12S5 (12 VDC in to 5 V 400 MA out); two RO Assoc 220-400 VDC input uVERTERs with one 28 VDC 10 A out and other 12 VDC 10 A out; and Vicor DC-DC Converter 250 VDC 35 W in to 5 VDC 25 W out. Also flat heat- sinks capacitors etc. 11×6.5×3.3 7 lbs sh. (P1Y)
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IFPC-T-R
$9.50MODULE stripline receiver RF/IF and low power xmitter boards plus oscillator/AGC board each in separate cavities. Components S80C652-1 MPU 2/84256A-10 RAM 27C256JL E-PROM two Sony 20102A D/A CONV etc. Requires +12 -12 +5 VDC; 11×6.5×1.5 5 lbs sh. (P1YO2Y)
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IFPC
$9.00COMMON module has two receiver input and two transmitter output sections. Has parts two each of Motorola filter 0850E05140 and 0895E05141 M/A- COM 7N526-6016 circulator in one section. Also 47.5 MHz local oscillator 5 MHz piezo osc and IC's N80C169KB 16 MHz CPU 27C256-20 32Kx8 EPROM 3/84256-10L 256Kx4 RAM & related IC's. Requires +28 +12 -12 V; 11×6.5×3.2 7 lbs. (P1YD3EC6R)
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240-089
$27.00MILCOM 240-089 2-WAY COMBINER for 800 MHz 2- SMA female & 1- male connectior. RFP 1121 50 ohm termination; 1.8×2.8×2 2 lbs.
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9K15-S
$21.00FERROCOM CIRCULATOR 840-900 MHz; T-shape SMA-N-SMA conn. No info; 1.9×1.9×1.
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DF-2575
$21.00DITCOM MICROWAVE CIRCULATOR for 850-895 Mhz; 500 watts CW max 3 KW peak. Isolation 20 DB min; insertion loss 0.3 db max. VSWR 1.25:1. Two SMA one N conn; 1.4×1.7×1.3 1 lb.
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CEL-85095-DP
$15.00CELWAVE (or =) 6-SECTION DUPLEXER for 850 MHz receive and 895 MHz transmit frequencies; SMA connections. 4×4.5 x2.4 2 lbs sh.
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IFRD-TV
$1.50INFRARED RECEIVER/DEMODULATOR as used in televisions and VCRs for remote control; has infrared detector and an IC for signal processing. Requires 5 VDC; 0.7×0.6×0.6 1 lb sh. (N1Z) Unused
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TS-2923
$39.50GRR-18 (599H3) RECEIVER TEST
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CH-645
$65.00GRR-18 RECEIVER RACK only; no module clips. 10.4×18.8×22.6 18 lbs sh.
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CV-2653
$125.00GRR-18 (889A-2) AUDIO FREQUENCY DETECTOR for receiver 7 lbs sh
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CV-2649
$99.50GRT-17 (888B-1) AMPLIFIER CONVERTER provides output signals for exciter from 250 KHz IF input; less cover 8 lbs sh.
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SCH-A2A14-RF550
$10.00SCHEMATIC packet for A2A14 RF-550 module. With module purchase.
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A2A14-RF550
$44.00Harris RF-550 HF receiver & RF-131 exciter module; Low Band Phase Lock Loop complements A2A8; responds to 12 wire 100 Hz 1 KHz and 10 KHz BCD info to provide output from 3.25 to 3.3499 MHz in 100 hz steps. Requires 1 Khz and 36.5 Mhz @ -10 dbm. 4.1×2.1 x5.9 2 lbs sh. Used not tested
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A2A8-RF550
$44.00Harris RF-550 HF receiver & RF-131 exciter module; High Band Phase Lock Loop. 10 Mhz 1 Mhz and 100 Khz BCD control input controls the output of the VCO over the range 158.35-188.25 in 100 KHz steps. Requires 198.3 MHz @ 39mV rms 100 KHz at 3 V p-p. 4.1×2.1 x5.9 2 lbs sh. Used not tested
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Sale!
RF-EXC-1512
$17.50RF EXCITER MODULE from 1980's RT-1512 HF transceiver; mixes 500 Khz USB signal with synthesized frequency to produce and amplify modulated RF. Synthesizer (not available) supplied 74.5/75.5 (LSB/USB) and 77-105 Mhz depending on desired output frequency; RF output is low level. Has Watkins Johnson M6E101. McCoy FRBRX22YY2 75MHz 50 ohm filter. Also two Motorola B4003377-901 house number RF transistors. Requires +5 +12 -12 +28 VDC; with pinout. 1×7.8 x3.3 2 lbs. unused AS-IS
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T201-180L
$13.00* T201-180L PHASE & LOAD DISCRIMIATOR removed from 2 – 25Mhz 150Watt Collins 180L-3, CU-991 automatic antenna tuner which determines if load is or = to 52 ohms; also R C or L output current. With schematic. ( N1Y ) 2 x 3 x 3. Sh wt 2 lbs.
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7249
$9.005.3-7 MC BC-458/T-21 xmitter PA coil replacement part for SCR-274/ARC-5 COMMAND SET (B2S) Used only.
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5856
$7.506-9.1 MC BFO oscillator replacement part for SCR-274/ARC-5 COMMAND SET (B2S) Unused.
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7277
$7.506-9.1 MC 1st IF 2830 KC replacement part for SCR-274/ARC-5 COMMAND SET (B2S) Unused.
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BFO-T602-R392
$21.00* PERMEABILITY-TUNED 455 KHz BFO COIL from R-392 receiver. Originally used with 5-55 pf variable capacitor but fixed cap may be substituted . Oscillation without parallel capacitor: 452-480 KHz. Good basis for BFO for any receiver with IF in 450-465 KHz range; with schematic. 3.3"L l.5" dia 1 lb sh. May have dents in cover, shaft turns freely. Used
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ROCK-DIR
$29.50Rockwell Directional Coupler for the AN/GRC-171B 20 watt 200-400 MHz transceiver. SMA connector for RF input. RF output uses BNC connector. NOS 5985-00-588-5285 4.8 x 1.3 x 1.3 1 lbs sh. Unused
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SWR-3349
$14.00* SWR / Discriminator pull out from AM-3349/GRC-106 Amplifier which covers 2-30 MHz at 200 Watt AM and 400 Watt PEP. 3.2×2.6×2.2 2 lb. with schematic (P1YM2L)
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Sale!
RFA-165
$24.50* Harris RF301/GRC-165 2-15 Mhz RF Amplifier/Preselector section contains V1 6DC6 V2 12BY7 which provide tuned grid/tuned plate amplification for the RF receive amplfier and the transmit driver. Band switch does not have detents, 14 1 mhz bands. 1/IERC 6025 and 1/IERC 5020 tube shield included. Power required 200 VDC -36 Vdc and 6.3 vac. An excellent basis for QRP set or experimentation. 6.3×6.5×6.7 5 lbs sh. With schematic and info. (Q1YE3U) Unused in sealed package.
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CTI-A1419
$59.50Microwave PLL Oscillators 12.859-13.385MHz used good condition. Shipping weight is 3 lbs.
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MS-540XELT-147
$59.50FreqWest Microwave PLL Oscillators 6140-6355MHz used good condition. Shipping weight is 3 lbs.
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PLC33-05
$59.50KarKar Microwave PLL Oscillators 5925-6355MHz used good condition. Shipping weight is 3 lbs.
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CTI-5328-2
$49.50Microwave PLL Oscillators 4800-5300MHz used good condition. Shipping weight is 3 lbs.
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6625-078-4718
$29.50* Frequency Standard Module from R-1051* and RT-618* radios; usable as replacement or adapt to other need where standard is required. Crystal oven with 5 MHz crystal provides 5 MHz sine wave output (approx 1.8V) plus possible non-sine outputs dual 500KHz 1 & 10 MHz. Designed stability: 1 part in 10 / day. Requires 18-24VDC input. 4.4x3x4.5 2 lbs sh. Used crystal only is checked other output may need repair with schematic (O2L)
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IF-ARC38A
$40.00F250A65 Collins 250 Khz IF assembly from ARC-38 transceiver. Has mechanical filters. F250A85 and F250Z4. Two 250Khz IF transformers. Tubes 5814 3/5749 5726. 3 lbs sh. (O2L) Used
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ASI-CMC27
$2.25* SCR/TRIAC CONTROLLER BOARD with seven each 400 V 4 A SCR’s and 200 V 6 A triaces. SCR’s tirgger the triac gates with a 50 m-sec 16 V pulse that holds all triggered triacs "on" unit 24 VDC to SCR’s is reset. Originally p/o time-temp sign. 6x6x3/4 l lb. with info
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PTSR006AOX
$2.00SWR BOARD PTSR006AOX for HyGain radio; 3 x 1.6 x 0.7. no info.
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M-701
$23.00* STANDING-WAVE RATIO INDICATOR CIRCUIT assemble a SWR meter using this 1 3/4" square 0-10 scale (FS=2 MA) meter with filters and rectifiers and a modified Schering bridge. One pair of bridge arms is resistive the other capacitive. In theory the bridge circuit is balanced when the antenna is tuned to 52 ohms resistive resulting in a zero reading on the meter. SO-239 connector Bridge: 2 1/2x 2 1/4 x 1; 2 lbs. (O1YQ2Y)
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OSC-8004290G
$5.95* TRANSISTORIZED CRYSTAL OSCILLATOR and BUFFER 56 to 99 Mhz with 75 *C temperature controlled oven. Requires 5th overtone HC-6 (20 pf) crystal (not supplied). Has external oscillator input plus tuning meter & oven output. Requires 12-18 VDC regulated for oscillator; 22-39 VDC 1 amp for heater. W/BNC and SMA RF connections; DEC-9P plug for power. Part of GRT-21/22 xmitters (A8). 6.5x2x3.3 3 lbs sh. (C2X) Used with Schematic
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DOUB21-1472
$11.95* A9 5820-00-411-1472 VHF DOUBLER BUFFER MODULE 116 – 150 MHZ Circuit consists of doubler buffer and level/gain control. transistors are 2N4072 doubler 2N5109 buffer 2N2222 gain control amp. Power required +20 VDC. P/O ITT T-1108 Transmitter. W/schematic. 6.75 x 3.75 x 1.5 overall 2 lbs sh.(R1Y)
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Sale!
2140-1102
$85.00CUBIC R-3030 HF RECEIVER FIRST IF SECTION CONVERTER AMPLIFIER FROM CUBIC R3030 HF RECEIVER. This module was the first gain and first conversion module in this premium receiver. First conversion used LO 40.455 – 70.455 Mhz and second conversion used fixed LO of 40.455 Mhz to produce the IF output of 455 Khz. These oscillator signals came from another module which is not available. This module has the factory seals on it and is in excellent condition. If you added a swept 40 to 71 mhz oscillator and other circuitry you could use this front end as a HF spectrum display. 4.2×8.1×1 3 lbs sh. (P2P)
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Sale!
AM3349RFLOAD
$199.00ANTENNA LOAD ASSEMBLY from AM-3349/GRC-106 includes C26 1000pf at 5KV vacuum variable capacitor C27 15-355pf air capacitor 26 1000pf feed-thru caps L1 0.5 to 40UH variable inductor L2 37UH fixed inductor S1 2-deck 5-position ceramic switch and two Globe or = 24 VDC motors. 5.5×9.5×5.5 12 lbs sh. Used
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CAV1012A
$20.50Western Electric 1012A 475 – 525 Mhz cavity . Two type N connectors. 11.5×6.2×6.1 10 lbs sh. Used good condition
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101CA15400
$49.508-12 Ghz Oscillator assembly from some Gigatronics device. Federal Stock Number is 6625-01-191-1980. The assembly consists of an Avantek YO85-2218 8 – 12.4 Ghz oscillator and a Virtech VX-8012 Circulator or Filter??? 4 lbs sh. Unused
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AMP-612
$69.50Broad Band Power Amplifier Assembly covering 1.6 – 24 MHz removed from the TN-612 pre-post selector. This is the complete front panel for the TN-612 pre selector/ post selector. Uses S15-28 T9-0664 and 2/MRF-466 transistors. 24 VDC. No further info at this time. 2.3×17.3×4.5 9 lbs sh. (L1F)
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INV-6155
$50.00* AC – AC Inverter from AM-6154 or AM-6155. 13.5V 47 to 420Hz input, output 115 v 400-hz blower power supply, with schematic. 7.1x5x4 5 lbs sh. (A8G) Used.
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BS-6155
$35.50* Bias Supply from AM-6154 or AM-6155 amplifier with schematic. 7.1x5x4 7 lbs sh. (A8GB2WL2U) Used
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XCAL-ART-13
$79.50ART-13 CRYSTAL CALIBRATOR provides 50 KHz fundamental using 200 KHz crystal. Also 1000 Hz tone for MCW. Tubes 2/12SL7 12SA7; 6x5x3 4 lbs sh. Used, one only
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CO-500
$21.00500Khz Crystal oscillator w/500Khz crystal in oven. With tubes 5654 & 5814. (P2L) Used
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MCO-ARC38
$29.00* 1 Mhz James Knights Modulator Crystal Oscillator plug in module. Output drives locked divider tubes to produce 500khz 250khz 100khz. Crystal oscillator module requires 28 VDC. 250 VDC and filament voltages also required for divider circuits. With tubes 5/6021 & 5636. With schematic. 3 lbs sh. Used
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SPM-ARC38
$40.00Speech Processing Modulator for the SSB ARC-38A transceiver with two each F250Z4 Collins mechanical filters 526-9130-921. Center freq 251.8khz. Contains microphone amplifier and speech clipper circuits balanced modulator for USB operation. With tubes 5896 6021 2/5840 & 6112. 3 lbs sh. Used
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PA-105
$59.00* HF Power Amplifier from Collins ARC-105 400 W PEP 125 W AM 2- 30 mhz in 8 bands. Module has two 7204/4CX250F tubes and associated output tuning circuitry. Band selection is controlled by 28 vdc motor. The grid tuning circuitry is NOT part of this module. Output inductor is tuned with 115 v 400 Hz motor. Requirements 1500 VDC 28 VDC 27 VAC filament 115V 400 Hz. 544-9283-00
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105-PS400
$15.00From Collins ARC-105 transceiver. 115V 400Hz 3 Phase Power Supply Module produced 1500 VDC for 400 Watt PEP transceiver that used 2/7204 tubes. 528-0446-00 Also 250 VDC 70 ma. 10.3×4.3×4.8 13 lbs sh.
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105-OSC
$15.00* Precision RF Oscillator Module produces 500 Khz and 100 Khz reference signals from a temperature compensated 3 Mhz crystal oscillator. Originally part of Collins ARC-105 transceiver. Requirements were 3 Mhz +/- 2 hz 500 Khz +/- 0.4 hz 100 Khz +/- 0.4 hz. Operates from 18 VDC.
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105-AA
$37.50105-AA-A9 RT-712/ARC-105 IF and Audio Amplifier with 4 stages of 500Khz IF amplification with 500Khz Collins 6Khz mechanical filter, with AGC and low level Audio Amplifier. Three transistor microphone amplifier as part of its function in the transceiver. Power input 18VDC, 25VDC, and 28VDC. Includes schematic. 4.8 x 4.3 x 2.8 (O2L)
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105-IF
$90.00IF Translator Module from Collins ARC-105 pressurized version of 618T HF Transceiver IF Translator module has LSB-USB filters F500 Z4 (526 9377) & Z5 (526 9376). This unit provides the mechanical filter used in single side band the conversion of the PRC-47 transceiver to allow LSB operation. Removed from equipment not tested. 4.3×2.9×4.7 4 lbs sh.
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Sale!
3349-INV
$39.50* Inverter from AM-3349 /GRC-106 which contains the DC – DC supply for the High voltage power supply that powered two 4CX350F tubes to 400 watta PEP. Power input is 24VDC. This supply produced 500 VDC plate and screen grid supply for 8233 driver tube and screen grid for PA tubes. Also 2400 VDC plate voltage for PA tubes. Transformer and components are mounted to irregularly shaped casting. With schematic. (E2T) 7x18x6.9 21 lbs sh.
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Sale!
2A6A1-400HZ
$24.50* DC-AC 400 HZ INVERTER from AM-3349. Input 26 VDC Designed outputs 120 VPP 400 hz and 156 VPP 400 hz. Also 12.6 VPP 400 hz 600 ma for filaments. Components mounted in irregularly shaped casting. Transformer is not removeable. Removed from equipment. With schematic. 2.3×6.6×4.9 5 lbs sh. (N1UL2V)
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4162D
$7.50BIRD RF POWER MONITOR rated 220-405 MHz 40W. Measures incident and reflected power; VSMR 1.1:1 max. Usable over 145-500 MHz. Output 100 ua @ 5K ohm. RF connectors; output C input BNC. DB-9 for DC outputs. 1.8x4x1 1lb sh. (O1Y) Unused
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RX-70
$19.95RT-1288/ARC-164 Main Receiver and 70Mhz IF. #5821-013-02-1368 1990 Date code. 2 lbs sh. Unused NOS
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5821-953-9695
$19.95TRANSISTORIZED GUARD RECEIVER f/ modified RT-178/ARC-27; one channel in 238-248 Mhz range. IF's 25.1/3.45 MHz; has detector noise limiter AVC 4/2N1745 transistors and 25.l MHz filter. 8×4 1/2×4 6 lbs sh. (C2W) used