1654

General Radio 1654

impedance comparator General Radio 1654 Impedance Comparator Available from 1970 to 1978+ Manuals General Radio 1654 Impedance Comparator Manual 1654-0100-A 1969 (All manuals in PDF format unless noted otherwise)

The General Radio 1654 Impedance Comparator was introduced in 1970 Catalog U and remained available through Catalog 1978.

The Type 1654 is third in a line of impedance comparators starting with 1604-B 1952 and the 1605-A 1956. Like the earlier 1605-A the 1654 was designed for applications of sorting, selecting, and adjusting of components in production and inspection at high speed. Unlike its predecessor its all solid state replaceing some twenty vacuum tubes.

Specifications

Impedance Range: See Manual.
Frequencies: Internal only 100 Hz, 1, 10, and 100 kHz, ±1%.
Accuracy: 3% of full scale.
Resolution: Meter, 0.003% and 0.00003 radian. Analog-voltage output, 0.001% and 0.00001 radian.
Voltage Across Standard and Unknown: 0.3, 1, or 3 V selected by front-panel control.