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Receiver-Transmitter RT-67/GRC

Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778968) Military
 
Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778969) Military
 
Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778970) Military
 
Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778971) Military
 
Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778972) Military
Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 2555413) Military Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778967) Military
Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 778974) Military Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 2057154) Military
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Receiver-Transmitter RT-67/GRC; MILITARY U.S. (ID = 2555413) Military
MILITARY U.S.: Receiver-Transmitter RT-67/GRC [Military] ID = 2555413 1280x1056
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For model Receiver-Transmitter RT-67/GRC, MILITARY U.S. (different makers for same model):
Collection personnelle
 
Country:  United States of America (USA)
Manufacturer / Brand:  MILITARY U.S. (different makers for same model)
Year: 1949 Category: Military Equipment (not Re, Tr or RXT)
Valves / Tubes 27: 6AK5 1R5 1R5 1R5 1R5 3A5 3A5 3A5 3Q4 3Q4 3Q4 3A4 1AE4 3B4 3B4 2E24 1L4 1L4 1L4 1S5 1U4 1U4 1U4 1A3 1A3
Main principle Transceiver; ZF/IF 4450-4550 / 1400 kHz; 2 AF stage(s)
Tuned circuits 10 FM circuit(s)
Wave bands Wave Bands given in the notes.
Details
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 12; 24 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Receiver-Transmitter RT-67/GRC - MILITARY U.S. different makers
Material Metal case
Shape Boatanchor (heavy military or commercial set >20 kg).
Dimensions (WHD) 286 x 230 x 330 mm / 11.3 x 9.1 x 13 inch
Notes RT-67/GRC is a robust FM radio-set, designed for vehicular use, applied in several communication set-ups: stand alone as VRC-9, or in larger systems GRC-5, GRC-6 and VRQ-2, powered by PSU PP-109/GRC with 12 volts battery or PP-112/GRC with 24 volts battery. It could also be used in the field with auxiliary-kit MX-898/GRC, including generator G-8/GRC and (not neccessary) a battery-box CY-590/GRC.
Frequency range 27-39 MHz, transmitter output 2 watt low, or 16 watt high, FM(F3), voice and MCW.
In the double conversion receiver part we find a RF stage, a first oscillator and first mixer to a band of 4450 to 5550 kHz.
The left big tuning knob at the front serves a crystal-oscillator and a harmonics generator by switching to the desired MHz. There are 12 crystals to choose. The right big tuning knob serves a VFO to tune the desired signal within 1 MHz. After 2 variable IF stages, a second oscillator stage and second mixer stage bring the signal to a second IF of 1400 kHz, followed by 2 IF limiter stages, and a FM-discrimator with 2 valve-diodes 1A3.
The transmitter frequency is controlled by a special discriminator that compares the transmitting-frequency to the receiver-frequency.
The 2E24 transmitter-PA has a special quick-ready filament, and is only heated on transmit mode.
Net weight (2.2 lb = 1 kg) 16 kg / 35 lb 3.9 oz (35.242 lb)
Source of data -- Original-techn. papers.
Literature/Schematics (1) TM11-289 1953 TDv 5820/006-13 1959

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 362 models, 317 with images and 173 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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