VINTAGE GENERAL RADIO COMPANY 1390-B RANDOM NOISE GENERATOR

Parts/Repair Only — Untested — General Radio Random Noise Generator 1390-B

GENERAL RADIO RANDOM NOISE GENERATOR 1390-B AS IS/UNTESTED

1390-B random noise generator

VINTAGE GENERAL RADIO COMPANY 1390-B RANDOM NOISE GENERATOR USA Made

Vintage General Electric GE Random Noise Generator Type 1390-B Made In USA Parts

Vintage General Radio Company 1390-A Random Noise Generator NASA/ Douglas Eng.

Noise/Com Inc. Noise Source NC1124A.