1656: Difference between revisions
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(Created page with "Type '''1656 Impedance Bridge'''. ==Specifications== ==Links== ==Photos== <gallery> </gallery> Category:Impedance measurement") |
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{{GR Product | |||
|model=1656 | |||
|class=impedance measurement | |||
|summary=Impedance bridge | |||
|image=GR 1656 Front A.jpg | |||
|caption=General Radio 1656 Impedance Bridge | |||
|series= | |||
|introduced=1970 | |||
|discontinued=1978+ | |||
|designers= | |||
|manuals= | |||
* [[Media:GRwiki 1656 Impedance Bridge 1656-0100-B 07_1974 .pdf|General Radio 1656 Impedance Bridge 1656-0100-B 1974]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1656 Impedance Bridge}} was introduced in {{Catalog U}} and remained available through {{Catalog 1978}}. | |||
It is last in a long line of manual impedance bridges starting with [[650-A]] in 1933. | |||
The 1656 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. | |||
The 1656 is powered 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== | ==Specifications== | ||
* '''Ranges:''' | |||
** '''Capacitance:''' 0.1 pF to 1100 μF, series or parallel, 7 ranges | |||
** '''Inductance:''' 0.1 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 nS to 1.1 S, AC or DC, 7 ranges | |||
* '''Basic Accuracy:''' 0.1% (see manual) | |||
* '''Generator:''' Internal, 1 kHz ±2% AC, 1.5 V DC; External, 20 Hz to 20 kHz AC | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1656 03_1970.pdf|Experimenter describing Type 1656 March 1970]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1656 CRL Front.jpg | |||
GR 1656 Case Closed Left.jpg | |||
GR 1656 Case Closed Top.jpg | |||
GR 1656 Case Closed Right.jpg | |||
GR 1656 Case Open Left.jpg | |||
GR 1656 CRL Close-up.jpg | |||
GR 1656 CRL Rear.jpg | |||
GR 1656 Inside Bottom.jpg | |||
GR 1656 Inside Left DQ.jpg | |||
GR 1656 Inside Right.jpg | |||
GR 1656 Inside Top.jpg | |||
GR 1656 Rear B.jpg | |||
GR 1656 Rack Mounting.jpg | |||
</gallery> | </gallery> | ||
[[Category:Impedance measurement]] | [[Category:Impedance measurement]] | ||
Latest revision as of 19:03, 16 April 2024
The General Radio 1656 Impedance Bridge was introduced in Catalog U (1970) and remained available through Catalog 1978.
It is last in a long line of manual impedance bridges starting with 650-A in 1933.
The 1656 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.
The 1656 is powered 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: 0.1 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 nS to 1.1 S, AC or DC, 7 ranges
- Basic Accuracy: 0.1% (see manual)
- Generator: Internal, 1 kHz ±2% AC, 1.5 V DC; External, 20 Hz to 20 kHz AC
