SPECIFICATIONS

Type:  Superheterodyne
Use: UHF Shipboard Receiver.
Frequency  range - 225 to 400 MHz. (Except 222 to 232 MHz which is unuseable due to blocking of the IF amplifier by harmonics of the Crystal Multiplier circuits)
IF: 15.5 MHz
Sensitivity: 10 µv or less.
Frequency control:  Can be used with manual tuning or 10-channel autotune.
Crystal Type: CR-7
No. of tubes: 21
Modes: MCW or AM only.
Input impedance: 50 ohms.
Primary Power: 110/115/120 VAC, single phase, 300 watts maximun, 175 watts nominal.
Weight:  150 pounds
Dimensions: 13.5" H x 22"W x 22 5/32" D
Circa 1944.
Made by National Co. Malden  Mass. and Admiral Corp Chicago, Ill.
Manual No. 900617
 

RDZ receiver   (Photo courtesy  Le Musée Québecois de la Radio)

Various internal views of the RDZ receiver. (Courtesy USN)

Credits and References:

1) RDZ photo via Jacques Hamel  <hamja(at)videotron.ca>
2) RDZ spec sheet: http://www.hnsa.org/doc/ecat/cat-1208.htm
 

Dec 4/14