1650-B
The General Radio 1650-B Impedance Bridge was introduced in 1968 Catalog T and remained available through Catalog 1978.
The Type 1650-B is the improved version of the iconic 1650-A. Improvements include an added conductance bridge, slow motion dials for DQ and RCL, battery check setting on the function switch and a side panel for connections preciously on the front panel. The 1650-B uses a redesigned battery compartment, the batteries are contained in a removeable tube accessible after removing the bridge from its case. The specifications are similar to the 1650-A.
Specifications
- Capacitance: 1 pF to 1100 μF in 7 ranges.
- Inductance: 1 μH to 1100 H in 7 ranges.
- Resistance: 1 mΩ to 1.1 MΩ in 7 ranges.
- Conductance: ac or dc, 1 n℧ to 1.1 ℧ in 7 ranges.
- D: (series capacitance) 0.001 to 1 at 1 kHz, (parallel capacitance) 0.1 to 50 at 1 kHz.
- Q: (series inductance) 0.02 to 10 at 1 kHz, (parallel inductance) 1 to 1000 at 1 kHz.
- Basic accuracy: ±1% of full scale, ±5% for dissipation factor.
- Internal oscillator: 1 kHz ±2%.
- Frequency range: 20 Hz to 20 kHz (to 100 kHz with reduced accuracy).
