General Radio Company 1390-B Random Noise Generator Untested

Random Noise Generator GR1390B 5MHz bandwidth. Gaussian output 3V max WORKS OK!!

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

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

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

General Radio Random Noise Generator Vintage Lab Equipment Analog GR

General Radio 1390-B Random Noise Generator

Vintage PRECISION PACO E-200-C RF SIGNAL-MARKING GENERATOR Untested