1631-A: Difference between revisions
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{{GR Product | {{GR Product | ||
|model=1631-A | |model=1631-A | ||
|codes=LARVA | |||
|class=impedance measurement | |class=impedance measurement | ||
|summary=Inductance Bridge | |summary=Inductance Bridge | ||
| Line 15: | Line 16: | ||
The {{Title|General Radio 1631-A Inductance Bridge}} appeared in {{Catalog L}} only. | 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 Type 1631-A is portable service grade inductance measuring device using the Maxwell bridge circuit. | ||
the detector being a set of headphones. The power for the hummer oscillator is a pair Burgess F2BP suppling 6 volts | It accomplishes this without the use of any vacuum tubes. | ||
mounted inside its walnut case | 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== | ||
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==Links== | ==Links== | ||
* [[Media:GR Exp 1614-A 1631-A 02_1946.pdf|Experimenter describing | * [[Media:GR Exp 1614-A 1631-A 02_1946.pdf|Experimenter February 1946 describing Types 1614-A and 1631-A]] | ||
==Photos== | ==Photos== | ||
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GR 1631-A Inside Left.jpg | GR 1631-A Inside Left.jpg | ||
GR 1631-A Inside Right.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 11:23, 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
