716-C: Difference between revisions
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Type | {{GR Product | ||
|model=716-C | |||
|class=impedance measurement | |||
|summary=capacitance bridge | |||
|image=GR 716-C Close-up.jpg | |||
|caption=General Radio 716-C Capacitance Bridge | |||
|series=716 | |||
|introduced=1948 | |||
|discontinued=1970 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 716C Capacitance Bridge 681-K 11-1959.pdf|General Radio 716-C Capacitance Bridge Manual 681-K 1959]] | |||
}} | |||
The {{Title|General Radio 716-C Capacitance Bridge}} was introduced in {{Catalog L}} and remained available through {{Catalog U}}. | |||
The Type 716-C capacitance bridge uses the Schering circuit and is direct reading at five frequencies, 100 Hz, 1 kHz, 10 kHz, and 100 kHz. Dissipation factor is direct reading at 1 kHz but the usable range is greater, see the manual. Capacitance measurements can be made by the direct or substitution methods. When using the substitution method a balancing capacitor is required that is 100 pF greater than the unknown, the Types 505 and 509 are recommended. Inductance and Q of large inductors can be measured by the substitution method. The 716-C requires a generator and detector, the Types [[1310-A]] or [[1311-A]] oscillators and [[1232-A]] null detector are recommended. | |||
==Specifications== | ==Specifications== | ||
* '''Capacitance Range:''' Direct method, 100 to 1150 pF; Substitution method 0.1 to 1050 pF | |||
* '''Accuracy:''' ±0.1% | |||
* '''Dissipation Factor Range:''' 0.00002 to 0.56 | |||
* '''Accuracy:''' ±2% | |||
* '''Frequency:''' 30 Hz to 300 kHz | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 716-A 12_1936.pdf|Experimenter describing Type 716-A December 1936]] | |||
* [[Media:GR Exp 716-B 04_1942.pdf|Experimenter describing Type 716-B April 1942]] | |||
* [[Media:GR Exp 716-C 04_1947.pdf|Experimenter describing Type 716-C April 1947]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 716-C Front.jpg | |||
GR 716-C Front A.jpg | |||
GR 716-C Rear.jpg | |||
GR 716-C Side.jpg | |||
GR 716-C Interior Rear.jpg | |||
GR 716-C Interior C control.jpg | |||
GR 716-C Interior Rear A.jpg | |||
GR 716-C Interior D Control.jpg | |||
GR 716-C Interior Rear B.jpg | |||
GR 716-C Interior Top w_cover.jpg | |||
GR 716-C Interior Top.jpg | |||
GR 716-C Interior Upper.jpg | |||
GR 716-C Interior Upper Right.jpg | |||
GR 716-C Interior Upper Left.jpg | |||
</gallery> | </gallery> | ||
[[Category:Impedance measurement]] | [[Category:Impedance measurement]] | ||
Revision as of 19:36, 7 May 2024
The General Radio 716-C Capacitance Bridge was introduced in Catalog L (1948) and remained available through Catalog U (1970).
The Type 716-C capacitance bridge uses the Schering circuit and is direct reading at five frequencies, 100 Hz, 1 kHz, 10 kHz, and 100 kHz. Dissipation factor is direct reading at 1 kHz but the usable range is greater, see the manual. Capacitance measurements can be made by the direct or substitution methods. When using the substitution method a balancing capacitor is required that is 100 pF greater than the unknown, the Types 505 and 509 are recommended. Inductance and Q of large inductors can be measured by the substitution method. The 716-C requires a generator and detector, the Types 1310-A or 1311-A oscillators and 1232-A null detector are recommended.
Specifications
- Capacitance Range: Direct method, 100 to 1150 pF; Substitution method 0.1 to 1050 pF
- Accuracy: ±0.1%
- Dissipation Factor Range: 0.00002 to 0.56
- Accuracy: ±2%
- Frequency: 30 Hz to 300 kHz
Links
- Experimenter describing Type 716-A December 1936
- Experimenter describing Type 716-B April 1942
- Experimenter describing Type 716-C April 1947
