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
Nomenclature Tag
Frequency range .5 Mc to 30.5 Mc Receiver type Single, double or triple conversion superheterodyne IF frequency 500 Kc Number of tubes 18, 19(A) Tuning Linear, divided into thirty 1 Mc tuning steps Method of calibration Built-in crystal oscillator (100 Kc) Frequency stability Over-all stability within 1 Kc for average conditions; within 2 Kc for extreme conditions Output impedances 4 and 600 Ohm Antenna input impedance Unbalanced to match short whip antenna (50 Ohm, 100 uuF) Power requirements 85 W at 115 or 230 VAC, 45 to 70 cps Weight 35 pounds
R-388(A) page INDEX