View source for 908-P2

{{GR Product
|model=908-P2
|codes=SYNKA
|class=recorders and dial drives
|summary=Synchronous Dial Drive
|image=GR 909-P2 Close-up.jpg
|caption=General Radio 908-P2 Synchronous Dial Drive
|series=908
|introduced=1956
|discontinued=1965
|designers=
|manuals=
* '''Manual Needed'''
{{Catalog History}}
}}
The {{Title|General Radio 908-P2 Synchronous Dial Drive}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}. 

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, e.g. to plot  amplitude vs. frequency.

The 908-P2 is self-reversing when it encounters a mechanical stop. It features two sets of attaching screws for instruments with Type 908 and 907 dial mechanisms. 

Compatible oscillators are [[1209-C]],  [[1209-CL]],   [[1211-C]],  [[1215-C]], [[1304-B]], [[1360-B]], and [[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==

* [[Media:GR Exp 908-P1_P2 11_1954.pdf|Experimenter November 1954 describing Type 908-P1]]
* [[Media:GR Exp Dial Drives 08_1956.pdf|Experimenter November 1956 describing Synchronous Dial Drives]]
* [[Media:GR Exp X-Y Plotting Sweep Drives 12_1956.pdf|Experimenter December 1956 describing X-Y Plotting Sweep Drives]]

==Photos==
<gallery>
GR 908-P2 Front.jpg
GR 908-P2 Left.jpg
GR 908-P2 Top.jpg
GR 908-P2 Right.jpg
GR 908-P2 Rear.jpg
GR Dial Drives Catalog S Gray.jpg
</gallery>

[[Category:Recorders and Dial Drives]]