1631-A: Difference between revisions
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(Created page with "Type '''1631-A Inductance Bridge'''. ==Specifications== ==Links== ==Photos== <gallery> </gallery> Category:Impedance measurement") |
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{{GR Product | |||
|model=1631-A | |||
|codes=LARVA | |||
|class=impedance measurement | |||
|summary=Inductance Bridge | |||
|image=GR 1631-A Close-up.jpg | |||
|caption=General Radio 1631-A Inductance Bridge | |||
|series= | |||
|introduced=1948 | |||
|discontinued=1948 | |||
|designers= | |||
|manuals= | |||
* '''Manual Needed''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1631-A Inductance Bridge}} appeared in {{Catalog L}} only. | |||
The Type 1631-A is portable service grade inductance measuring device using the Maxwell bridge circuit. | |||
It accomplishes this without the use of any vacuum tubes. | |||
The generator used is "Hummer" type operating at 1000 Hz and the detector being a set of headphones. The microphone hummer oscillator is the Type [[572-B]]. | |||
The power for the hummer oscillator is a pair Burgess F2BP suppling 6 volts mounted inside its walnut case. | |||
==Specifications== | ==Specifications== | ||
* '''Inductance Range:''' 10 μH to 100 H in 3 ranges | |||
* '''Inductance Accuracy:''' ±2.5% of dial reading between 100 μH and 10 H. See Manual | |||
* '''Q Range:''' 1 to 45 | |||
* '''Q Accuracy:''' ±10% of dial reading for values of Q between 2 and 10. See Manual | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1614-A 1631-A 02_1946.pdf|Experimenter February 1946 describing Types 1614-A and 1631-A]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1631-A Front A.jpg | |||
GR 1631-A Case Cover.jpg | |||
GR 1631-A Case Latch.jpg | |||
GR 1631-A Case Top.jpg | |||
GR 1631-A Case Cover Inside.jpg | |||
GR 1631-A Instructions.jpg | |||
GR 1631-A Case Battery Compartment.jpg | |||
GR 1631-A Case Open.jpg | |||
GR 1631-A Case Open Headphones.jpg | |||
GR 1631-A Inside Rear.jpg | |||
GR 1631-A Inside Top.jpg | |||
GR 1631-A Inside Bottom.jpg | |||
GR 1631-A Inside Left.jpg | |||
GR 1631-A Inside Right.jpg | |||
GR 1631-A Hummer.jpg|Hummer Oscillator | |||
GR 1631-A Hummer B.jpg|Hummer Oscillator | |||
</gallery> | </gallery> | ||
[[Category:Impedance measurement]] | [[Category:Impedance measurement]] | ||
Latest revision as of 12:23, 19 June 2024
The General Radio 1631-A Inductance Bridge appeared in Catalog L (1948) only.
The Type 1631-A is portable service grade inductance measuring device using the Maxwell bridge circuit. It accomplishes this without the use of any vacuum tubes. The generator used is "Hummer" type operating at 1000 Hz and the detector being a set of headphones. The microphone hummer oscillator is the Type 572-B. The power for the hummer oscillator is a pair Burgess F2BP suppling 6 volts mounted inside its walnut case.
Specifications
- Inductance Range: 10 μH to 100 H in 3 ranges
- Inductance Accuracy: ±2.5% of dial reading between 100 μH and 10 H. See Manual
- Q Range: 1 to 45
- Q Accuracy: ±10% of dial reading for values of Q between 2 and 10. See Manual
Links
Photos
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Hummer Oscillator
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Hummer Oscillator
