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(Created page with "Type '''268 Variocoupler'''. ==Specifications== ==Links== ==Photos== <gallery> </gallery> Category:Parts and Accessories") |
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Type | {{GR Product | ||
|model=268 | |||
|codes=VALET | |||
|class=parts and accessories | |||
|summary=Variometer | |||
|image=GR 268 Front.jpg | |||
|caption=General Radio 268 Variometer | |||
|series= | |||
|introduced=1924 | |||
|discontinued=1932 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 268 Variocoupler.pdf|General Radio 268 Variometer Data Sheet]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 268 Variometer}} was introduced in {{Bulletin 926}} and remained available through {{Catalog G1}}. | |||
The Type 268 Variometer is a variable inductor with a fixed stator and shaft-controlled rotor. | |||
Its main use is in the first stage of broadcast band radio receivers of the TRF design. | |||
Located between the antenna and the first RF amplifier, it served as a tunable variable coupling. | |||
It features silk-covered wire coils and moulded bakelite construction. | |||
==Specifications== | ==Specifications== | ||
* '''Stator Inductance:''' 380 μH | |||
* '''Rotor Inductance:''' 106 μH | |||
* '''Control Shaft:''' ¼ inch | |||
==Links== | ==Links== | ||
==Photos== | |||
<gallery> | <gallery> | ||
GR 268 Box A.jpg | |||
GR 268 Front.jpg | |||
GR 268 Side A.jpg | |||
GR 268 Top.jpg | |||
GR 268 Box B.jpg | |||
</gallery> | </gallery> | ||
[[Category:Parts and Accessories]] | [[Category:Parts and Accessories]] | ||
Latest revision as of 04:59, 12 June 2024
The General Radio 268 Variometer was introduced in Bulletin 926 (1927) and remained available through Catalog G1 (1932).
The Type 268 Variometer is a variable inductor with a fixed stator and shaft-controlled rotor. Its main use is in the first stage of broadcast band radio receivers of the TRF design. Located between the antenna and the first RF amplifier, it served as a tunable variable coupling. It features silk-covered wire coils and moulded bakelite construction.
Specifications
- Stator Inductance: 380 μH
- Rotor Inductance: 106 μH
- Control Shaft: ¼ inch
