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EB5AGV's R-388(A) page

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This is a page devoted to the Collins R-388 (51J-3) and R-388A (51J-4) receivers.

Quoting their TM manuals, Radio Receiver R-388(A)/URR is a communications receiver, having excepcional frequency stability and calibration accuracy. The receiver covers the frequency range from .5 to 30.5 Mc. It is a 18 (19(A)) tube superheterodyne receiver for receiving AM phone signals an CW signals.

Collins R-388 Collins R-388

Nomenclature Tag Nomenclature Tag

Technical Characteristics
Frequency range.5 Mc to 30.5 Mc
Receiver typeSingle, double or triple conversion superheterodyne
IF frequency500 Kc
Number of tubes18, 19(A)
TuningLinear, divided into thirty 1 Mc tuning steps
Method of calibrationBuilt-in crystal oscillator (100 Kc)
Frequency stabilityOver-all stability within 1 Kc for average conditions; within 2 Kc for extreme conditions
Output impedances4 and 600 Ohm
Antenna input impedanceUnbalanced to match short whip antenna (50 Ohm, 100 uuF)
Power requirements85 W at 115 or 230 VAC, 45 to 70 cps
Weight35 pounds

R-388(A) page INDEX

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