GENERAL RADIO Radio Frequency Bridge 916-A. UNTESTED Impedance Measure Tool.

Vintage General Radio 650-A Impedance Bridge/type 650-PI

Vintage WWII GR General Radio R-F Bridge 916-A, for Impedance Measurement

Vintage General Radio 1650-A Impedance Bridge Meter (S23)

General Radio GenRad 1656 Impedance Bridge with manual

Vintage General Radio 650-A Impedance Bridge/type 650-PI Untested

Signal Corps ZM4 B/U Resistance & Impedance Bridge by Shallcross - Good Condx

Hewlett Packard 202C Low Frequency Oscillator Turns On Untested low serial # HP