107-K: Difference between revisions
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(Created page with "Type '''107-K 90-500uh Variable Inductor'''. ==Specifications== ==Links== ==Photos== <gallery> </gallery> Category:Inductance Standards") |
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{{GR Product | |||
|model=107-K | |||
|class=inductance standards | |||
|summary=Variable Inductor | |||
|image=GR 107-K Close-Up.jpg | |||
|caption=General Radio 107-K Variable Inductor | |||
|series=107 | |||
|introduced=1935 | |||
|discontinued=1968 | |||
|designers= | |||
|manuals= | |||
* '''Manual Needed.''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 107-K Variable Inductor}} was introduced in {{Catalog H}} and remained available through {{Catalog T}}. | |||
The Type 107-K is variable inductor or "Variometer" of the Ayrton–Perry winding method. It contains two circular coils arranged one inside the other, a stator or fixed coil and a rotor coil attached to a calibrated inductance dial. By changing the orientation of the rotor coil inductance varied. The leads of the two coils are brought out to four binding posts where connections determine series, parallel or mutual inductance settings. Shorting links are provided for this purpose. The 107-K featured a Bakelite panel and walnut case. A tag attached to the panel displays the actual values. | |||
==Specifications== | ==Specifications== | ||
* '''Self-Inductance Series:''' 90 to 500 μH | |||
* '''Self-Inductance Parallel:''' 22.5 to 125 μH | |||
* '''Mutual-Inductance:''' 0 to 110 μH | |||
* '''Accuracy:''' 1% | |||
* '''Maximum Current:''' 6 A | |||
* '''DC Resistance:''' 0.38 Ω | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 107 06_1932.pdf|Experimenter June 1932 describing Type 107 Series]] | |||
* [[Media:GR Exp 107 01_1935.pdf|Experimenter January 1935 describing Type 107 Series]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 107-K Front.jpg | |||
GR 107-K Inside Bottom B.jpg | |||
GR 107-K Inside Bottom.jpg | |||
GR 107-K Inside Left.jpg | |||
GR 107-K Inside Rear.jpg | |||
GR 107-K Inside Top A.jpg | |||
GR 107-K Inside Top.jpg | |||
GR 107-K Inside.jpg | |||
GR 107-K Tag.jpg | |||
GR 107 Top.jpg | |||
GR 107 Case Inside.jpg | |||
GR 107 Case Bottom.jpg | |||
</gallery> | </gallery> | ||
[[Category:Inductance Standards]] | [[Category:Inductance Standards]] | ||
Revision as of 08:04, 3 May 2024
The General Radio 107-K Variable Inductor was introduced in Catalog H (1935) and remained available through Catalog T (1968).
The Type 107-K is variable inductor or "Variometer" of the Ayrton–Perry winding method. It contains two circular coils arranged one inside the other, a stator or fixed coil and a rotor coil attached to a calibrated inductance dial. By changing the orientation of the rotor coil inductance varied. The leads of the two coils are brought out to four binding posts where connections determine series, parallel or mutual inductance settings. Shorting links are provided for this purpose. The 107-K featured a Bakelite panel and walnut case. A tag attached to the panel displays the actual values.
Specifications
- Self-Inductance Series: 90 to 500 μH
- Self-Inductance Parallel: 22.5 to 125 μH
- Mutual-Inductance: 0 to 110 μH
- Accuracy: 1%
- Maximum Current: 6 A
- DC Resistance: 0.38 Ω
Links
- Experimenter June 1932 describing Type 107 Series
- Experimenter January 1935 describing Type 107 Series
