1605-A: Difference between revisions
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* [[Media:GRwiki 1605-A Impedance Comparator 1605-0100-E 04-1961.pdf|General Radio 1605-A Impedance Comparator Manual 1605-01100-E 1961]] | * [[Media:GRwiki 1605-A Impedance Comparator 1605-0100-E 04-1961.pdf|General Radio 1605-A Impedance Comparator Manual 1605-01100-E 1961]] | ||
{{Catalog History}} | |||
* [[Media:GRwiki Catalog O OCR 1956.pdf|O (1956)]], p.32 | |||
* [[Media:GRwiki Catalog P OCR 1959.pdf|P (1959)]], p.26 | |||
* [[Media:GRwiki Catalog Q OCR 1961.pdf|Q (1961)]], p.26 | |||
* [[Media:GRwiki Catalog R OCR 1963.pdf|R (1963]], p.50 | |||
* [[Media:GRwiki Catalog S OCR 1965.pdf|S (1965)]], p.46 | |||
* [[Media:GRwiki Catalog T OCR 1968.pdf|T (1968)]], p.70 | |||
}} | }} | ||
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. | ||
Revision as of 22:21, 31 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
Links
- Experimenter April 1956 describing Type 1605-A
- Predecessor: General Radio 1604-B Comparison Bridge (1954)
- Successor: General Radio 1654 Impedance Comparator (1970)
