908-P2: Difference between revisions
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==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR | GR 908-P2 Front.jpg | ||
GR | GR 908-P2 Left.jpg | ||
GR | GR 908-P2 Top.jpg | ||
GR | GR 908-P2 Right.jpg | ||
GR | GR 908-P2 Rear.jpg | ||
GR Dial Drives Catalog S Gray.jpg | GR Dial Drives Catalog S Gray.jpg | ||
</gallery> | </gallery> | ||
[[Category:Recorders and Dial Drives]] | [[Category:Recorders and Dial Drives]] | ||
Revision as of 08:46, 27 April 2024
The General Radio 908-P2 Synchronous Dial Drive was introduced in Catalog O (1956) and remained available through Catalog S (1965).
The Type 908-P2 is a synchronous dial drive with a pinion speed of 30 rpm. Its function is to sweep the dial of the attached instrument at a rate synchronous with an oscilloscope. It features two sets of attaching screws for instruments with Type 908 and 907 dial mechanisms. The 908-P2 is self reversing when it encounters a mechanical stop. Functions include plotting frequency versus amplitude. Below is a list of compatible oscillators. 1209-C 1209-CL 1211-C 1215-C 1304-B 1360-B 1361-A
Specifications
- Drive Speed: 30 RPM
- 908 Dial Speed: 2 RPM or 30 seconds per revolution
- 907 Dial Speed: 3 RPM or 20 seconds per revolution
- Torque at Pinion: ⅔ inch-ounces
Links
- Experimenter describing Type 908-P1 November 1954
- Experimenter describing Synchronous Dial Drives November 1954
