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PRC-9 RT-175A / PRC-9

PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 776173) Military
 
PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 776174) Military
PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 776172) Military PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 1661176) Military
PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 1661177) Military PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 2173326) Military
PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 2173327) Military PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 2173328) Military
PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 2173329) Military PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 2173330) Military
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PRC-9 RT-175A / PRC-9; MILITARY U.S. (ID = 776172) Military
MILITARY U.S.: PRC-9 RT-175A / PRC-9 [Military] ID = 776172 933x606
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For model PRC-9 RT-175A / PRC-9, MILITARY U.S. (different makers for same model)
 
Country:  United States of America (USA)
Manufacturer / Brand:  MILITARY U.S. (different makers for same model)
Year: 1951–1962 ? Category: Military Equipment
Valves / Tubes 14: 1AD4 5678 6286 5672 5A6
Main principle Transceiver; ZF/IF 4300 kHz; 1 AF stage(s)
Tuned circuits 9 FM circuit(s)
Wave bands Wave Bands given in the notes.
Details
Power type and voltage Dry Batteries / 1,5 & 6 & 67,5 & 135 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: PRC-9 RT-175A / PRC-9 - MILITARY U.S. different makers
Material Metal case
Shape Miscellaneous shapes - described under notes.
Dimensions (WHD) 265 x 77 x 470 mm / 10.4 x 3 x 18.5 inch
Notes The RT-175A FM-transceiver is a main component of the PRC-9 radio-equipment. Only in literature we can find the name PRC-9A, but on the equipment the -A suffix is never present.
Frequency range is 27-39 MHz, FM (F3), 1 W.
VFO-tuning and a crystal calibrator stage giving 4,3 MHz checkpoints. In the receiver-part we find 2 RF-stages, 4 IF stages, a discriminator FM-detector with 2 germanium diodes, a squelch-circuit and a pulse sweep generator to control the transmit frequency.
At the top we find all controls and connectors for the headset and 3 antennas: long whip AT271, short whip AT-272, and a ca. 50 ohm BNC-connector.
The set was designed for field use with a 3,65 kg multi-voltage battery BA-279, or for vehicular use with a 24 volts PSU and audio-amplifier AM-598.
All tubes, exept the noval 5A6, are of Special Quality subminiature B5A type. The factory aligned complete IF circuits, including the mini-tubes, are housed in sealed metal cans with B7G-pins, as well as the discriminator-circuit and the pulse sweep generator.
Similar, but with different frequency-ranges are RT-174A / PRC-8 20-28 MHz, and RT-176A / PRC-10 38-55 MHz.
A variant with different circuitry and 16 tubes, but a look-alike, is the RT-175 / PRC-9. Another variant is the 1 channel, 30-42 MHz, crystal controlled RT-339/PRC28.
Net weight (2.2 lb = 1 kg) 8.420 kg / 18 lb 8.7 oz (18.546 lb)
Source of data -- Original-techn. papers.
Mentioned in -- Original-techn. papers.
Literature/Schematics (1) -- Original-techn. papers. (TM11-612. TM11-4065.)

Model page created by Jan Terranea. See "Data change" for further contributors.



All listed radios etc. from MILITARY U.S. (different makers for same model)
Here you find 327 models, 282 with images and 163 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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