1605-A: Difference between revisions
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The '''General Radio 1605-A Impedance Comparator''' was introduced in 1956 Catalog O and remained available through Catalog T 1968. | The '''General Radio 1605-A Impedance Comparator''' was introduced in 1956 Catalog O and remained available through Catalog T 1968. | ||
The Type 1605-A can be used to compare pairs of components for magnitude and phase difference. It displays the results on separate meters (magnitude, phase). | The Type 1605-A can be used to compare pairs of components for magnitude and phase difference. It displays the results on separate meters (magnitude, phase). | ||
adjusting coils to a standard. | Using the built-in guard circuit during measurement, the unknown can be remotely located during measurement. | ||
Some other applications include checking ganged potentiometers or variable capacitors for tracking, checking balances of transformer windings, or adjusting coils to a standard. | |||
==Specifications== | ==Specifications== | ||
* '''Impedance Ranges:''' | * '''Impedance Ranges:''' | ||
** Resistance: 2 Ω to 20 MΩ | |||
** Capacitance: 40 pF to 500 μF | |||
** Inductance: 20 μh to 10,000 H | |||
* '''Internal Oscillator Frequencies:''' 100 Hz, 1 kHz, 10 kHz, 100 kHz | * '''Internal Oscillator Frequencies:''' 100 Hz, 1 kHz, 10 kHz, 100 kHz | ||
* '''Meter Ranges:''' | * '''Meter Ranges:''' | ||
** Impedance Magnitude Difference: ±0.3%, ± 1%, ±3%, ± 10% full scale | |||
** Phase Angle Difference: ±0.003, ±0.01, ±0.03, ± 0.1 radian full scale | |||
* '''Voltage Across Standard and Unknown:''' approx. 0.15 V | * '''Voltage Across Standard and Unknown:''' approx. 0.15 V | ||
==Links== | ==Links== | ||
* [[Media:GR Exp 1605-A 04_1956.pdf|Experimenter describing Type 1605-A | * [[Media:GR Exp 1605-A 04_1956.pdf|Experimenter April 1956 describing Type 1605-A]] | ||
==Photos== | ==Photos== | ||
Revision as of 20:23, 18 March 2024
The General Radio 1605-A Impedance Comparator was introduced in 1956 Catalog O and remained available through Catalog T 1968.
The Type 1605-A can be used to compare pairs of components for magnitude and phase difference. It displays the results on separate meters (magnitude, phase). Using the built-in guard circuit during measurement, the unknown can be remotely located during measurement. Some other applications include checking ganged potentiometers or variable capacitors for tracking, checking balances of transformer windings, or adjusting coils to a standard.
Specifications
- Impedance Ranges:
- Resistance: 2 Ω to 20 MΩ
- Capacitance: 40 pF to 500 μF
- Inductance: 20 μh to 10,000 H
- Internal Oscillator Frequencies: 100 Hz, 1 kHz, 10 kHz, 100 kHz
- Meter Ranges:
- Impedance Magnitude Difference: ±0.3%, ± 1%, ±3%, ± 10% full scale
- Phase Angle Difference: ±0.003, ±0.01, ±0.03, ± 0.1 radian full scale
- Voltage Across Standard and Unknown: approx. 0.15 V
