1234

General Radio 1234

standing-wave meter General Radio 1234 Standing-Wave Meter Available from 1968 to 1978+ Manuals General Radio 1234 Standing-Wave Meter 1234-0100-A 1968 (All manuals in PDF format unless noted otherwise)

The General Radio 1234 Standing-Wave Meter was introduced in 1968 Catalog T and remained available through Catalog 1978.

Specifications

Meter Scales VSWR: 1 to 4, 3.2 to 10, 1 to 1.2, and 1 to 1.05;dB, 0 to 10, 0 to 1.6, and 0 to 0.45;
Meter Scales Bolometer: current, 0 to 10 mA.
Meter Accuracy: 0 to 10 dB scale, ±(0.01 dB + 2% of reading);0 to 1.6 dB scale, ±0.02 dB; 0 to 0.45 dB scale, ±0.007 dB.
Bandwidth: 10 to 100 Hz, adjustable with constant gain.
Frequency: 1 kHz, adjustable ±30 Hz.