1656
The General Radio 1656 Impedance Bridge was introduced in 1970 Catalog U and remained available through Catalog 1978.
The Type 1656 Impedance Bridge is last in a long line of manual impedance bridges starting with 650-A in 1933. It features a built in generator and detector with side panel connections for external ones. The new CRL device that displays results in a digital format was a collaboration between Oak Manufacturing and General Radio. The DQ dial is of the conventional design. Power is by five D-Cells four for the generator/ac detector and one for the dc detector. Both batteries can be checked by the front panel function switch.
Specifications
- Ranges:
- Capacitance: 0.1 pF to 1100 μF; Series or parallel, 7 ranges.
- Inductance: O.l μH to 1100 H; Series or parallel, 7 ranges.
- Resistance: 0.1 mΩ to 1.1 MΩ; ac or dc, 7 ranges.
- Conductance: 0.1 n℧ to 1.1 ℧; ac or dc, 7 ranges.
- Basic Accuracy: .1%; See Manual.
- Generator: Internal, 1 kHz ±2% ac, 1.5 V dc. External, 20 Hz to 20 kHz ac.
