RF Detectors
Tunnel Diode Amplifier
24v DC / 12.9 dB @ 4.7 GHz
(RF) MCA-4700-10A
International Microwave tunnel didoe amplifier. 24v DC solid state circuit. 12.9 dB @ 4.7 GHz. 9 pin, gold surface. "N" female connection. 2.41"L x 1.031" diameter. Sealed in NSN packaging. Made in the USA. DC: 3/90. NOS. Mil-spec. Alt. P/N: 200-1245, MTC-4700-10A. NSN: 5820-00-928-9967.
$98 each - $95 (3+)
PRD Detector
26.5 - 40 GHz
(RF) 618
PRD detector. 26.5 - 40 GHz. Round flange measures 1.12" diameter. Inside waveguide dimensions: 0.28" x 0.14".
$137
Crystal Detector
12.4 - 18 GHz
(MWC) P424A
Hewlett Packard crystal detector. 12.4 - 18 GHz. WR-62.
$85 each
Crystal Diode Detector Mount
WR-62
(MWC) 717
Waveline crystal diode detector mount. WR-62. "BNC" female connector. 1.31" square flange. 0.31" x 0.62" opening. Diode NOT included. New!
$89 each
WR-90 to "BNC" Detector
(RF) 530
Narda WR-90 to "BNC" detector. Diode not included. NOTE: Optimum VSWR is obtained by using Narda N-604 Bolometer. New.
$85
Directional Detector
1.9 - 4.1 GHz / 20 dB
(RF) 787D
Hewlett Packard directional detector. 1.9 - 4.1 GHz. 20 dB.
$119
Crystal Detector
5.85 - 8.20 GHz
(RF) G424A
Hewlett Packard crystal detector. 5.85 - 8.20 GHz. WR-187 cover flange. 8 unthreaded mounting holes. Includes 11523A load resistor. "BNC" male / female connectors. Used. NSN: 6625-00-839-2328.
$95 each
Detector Mount
8.2 - 12.4 GHz
(RF) X485B
Hewlett Packard detector mount. 8.2 - 12.4 GHz. Tunable. Knob adjust. WR-90. "BNC" female. 5.875"L x 1"W. Used. NSN: 6625-00-580-0772.
$65 each
Solid State Crystal Detector
8.2 - 12.4 GHz
(RF) X421A
Hewlett Packard solid state crystal detector. Negative polarity. 8.2 - 12.4 GHz, 0.5v / mw, 100w input. WR-90 to "BNC" female. Used. NSN: 6625-00-591-1659. NOTE: "BNC" connector not perfect.
$95 each
Broadband Fixed-Tuned Coaxial Barretter Mount
50 mc - 12.4 GHz
(RF) 927
Weinschel broadband fixed-tuned coaxial barretter mount. DC bias. 4.5 mA, "N" male, 50 mc - 12.4 GHz. Stainless steel. NSN: 6625-15-212-9391.
$35 each
Broadband Barretter Mount
50 mc - 12.4 GC
(RF) 926
Weinschel broadband barretter mount. (aka: Fixed-tuned coaxial detector mount). 50 mc - 12.4 GC with integral noise suppressor. Stainless steel. Used.
$35 each
RF Detectors - Matched Pair
12.4 GHz
(RF) D12Z3R-MP
FEI Micro / TRW RF detectors, matched pair. Solid state. 12.4 GHz, 200 milliwatts average input. "SMA" male connector plug, "BNC" female receptacle. NSN: 5895-01-301-1657. Made in the USA.
*** SOLD OUT ***
Tunable Detector
8.2 - 12.4 GHz
(RF) 9177373
Tunable detector. 8.2 - 12.4 GHz, "BNC" female. WR-90 flange. 36 turns on stub. Requires 1N21 / 23 diode (not included).
$125 each
RF Crystal Detector
DC-12.4 GHz
(RF) N200A
Microlab / FXR RF crystal detector. Dual tuning, type "N" male to "BNC" female. DC-12.4 GHz. Includes 1N21B or MA451DR diode. Used.
$65 each
RF Tunnel Detector
"SMA" Male to "BNC" Female
(RF) DX1268
Aertech RF tunnel detector. "SMA" male to "BNC" female connectors.
$45 each
Waveguide Crystal Detector
12.4 - 18 GHz
(RF) P421A
Hewlett Packard waveguide crystal detector. 12.4 - 18 GHz. "BNC" connector. WR-62. Used.
$75
Video Signal Detector
(RF) MA7700I-0101
Radar / Microwave video signal detector. Two "SMA" connectors, male / female. 0.85" x 0.53". Alt. P/N: SM-A-803624-2, DX1471. NSN: 5840-01-256-6051.
$475 each
Positive Crystal Detector
0.1 - 1000 MHz / 75 ohm / 3v Max
(RF) 8572-100
Telonic Berkeley, Inc. positive crystal detector. 0.1 - 1000 MHz, 75 ohms, 3v max. "BNC" female - female connectors. Made in the USA.
$95 each
Mixer Diode Mount
(RF) 52716
Radiatronics Microwave mixer diode mount. "N" male input, "BNC" female output. Includes JBYI-IN23WE diode. Alt. P/N: IN5840-913-8529.
$95 each
Mixer Diode Mount
(RF) MDM-1N416B
Microwave mixer diode mount. "BNC" female output. 0.750" thread-on input. Includes IN416B mixer diode.
$85 each
Crystal Mount Mixer / Detector
(RF) X185S
KD1 crystal mount mixer / detector. "N" male to "BNC" female. Includes mixer diode (1N23WE). Silver plate.
$75 each
Tunnel Diode Detector
7.9 - 8.4 GHz
(RF) DX163
AerTech tunnel diode detector. 7.9 - 8.4 GHz. "TNC" male & female connectors.
$95
Crystal Detector
10 MHz to 12.4 GHz
(RF) 423B
HP crystal detector. 10 MHz to 12.4 GHz. Frequency response: ±0.3 dB. Max SWR: 1.15 to 4 GHz, 1.3 to 12.4 GHz. 200mw max. "N" male, "BNC" female connectors.
$375 each
Crystal Detector
26.5 - 40 GHz
(RF) R422A
Hewlett Packard crystal detector. WR-28. 26.5 - 40 GHz. "BNC" output.
$275
Crystal Detector
26.5 - 40 GHz
(RF) R422C
Hewlett Packard crystal detector. Wr-28. 26.5 - 40 GHz. "BNC" output.
$275
Crystal Detector
8.2 - 12.4 GHz
(RF) X424A
Hewlett Packard crystal detector. WR-90 to "BNC" female. 8.2 - 12.4 GHz.
$95 each
Crystal Detector
10 MHz to 18 GHz / 50 ohm
(RF) 8470B
Hewlett Packard crystal detector. Low-Barrier Schottky diode detector. 10 MHz to 18 GHz, 50 ohms. Frequency response ±3 dB to 12.4 GHz, ±0.5 dB to 15 GHz, ±0.6 dB to 18 GHz. "N" male - "BNC" female. Max SWR: 1.15 to 4 GHz, 1.3 to 18 GHz. New!
$650 each
Crystal Detector
10 MHz to 18 GHz / 50 ohm
(RF) 8470B/U
Hewlett Packard crystal detector. Low-Barrier Schottky diode detector. 10 MHz to 18 GHz, 50 ohms. Frequency response ±3 dB to 12.4 GHz, ±0.5 dB to 15 GHz, ±0.6 dB to 18 GHz. "N" male - "BNC" female. Max SWR: 1.15 to 4 GHz, 1.3 to 18 GHz. Used.
$399 each
Detector Mount
3.95 - 5.85 GHz
(MWE) HP-G485B
Hewlett Packard  WR-187 (3.95 - 5.85 GHz) round waveguide opening is 0.872" x 1.872". Dial complete waveguide range. "BNC" output. Diode is not included. Brand new.
$195 each
TS - 35A
Power Measuring Head

Diode Close up
(MWE) 3F49000
Western Electric power measuring head for TS-35A/APS . Diode mounted. Waveguide opening is 1/2" x 1-1/8". Flange is 1-1/4" x 2". All gold. Very high original cost.
$25 each - $20 (10+)
Radio Frequency
Detector
(RF) SMD134224
Radio frequency detector. Adjustable frequency range. Contains peanut tube 5829WA, 6.3v filament. (see more images). "N" male input, "BNC" female output. Circa 1967. NSN: 6625-00-503-0703.
$35 each
Dual Detector
7.05 - 12.4 GHz
(MWE) P60-INST-DEF2
Made by Western Electric, this device has two "N" female connectors at the elbow, on the short (8-1/2" end to center) side. The waveguide flange on this end is WR112 (1.88" square, 0.497" x 1.122" opening). Can't be sure if it is direct reading or diode mounts. WR-90 X-Band flange (1.63" square, 0.4" x 0.9" opening) on long (16" end to center) side. Nomenclature indicated "H" Bend.
$125 each
Diode Detector Mount
WR-62 / 12.4 - 18 GHz
(RF) MA595DS
Microwave Associates diode detector mount. 12.4 - 18 GHz, WR-62 waveguide input flange, "BNC" output. Includes MA666 diode in mount.
$25 each
Mixer / Detector
WR-75 / 10 - 15 GHz
(RF) 2099427-001
Hughes mixer / detector. WR-75. "BNC" port. Mount for IN78B diode (included). 10 - 15 GHz. 1.48" square flange.
$119 each
General Radio
Detector Tee
(RF) 874-VR
General Radio detector tee. Removable T for diode access. Locking adapter. Includes 1N25 style crystal microwave diode with wire connection.
$95 each
General Radio
Detector Tee
(RF) 874-MR
General Radio detector tee. Removable T for diode access. Includes 1N25 style crystal microwave diode.
$95 each