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38-690 volume control
etech
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Posts: 237
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Joined: Dec 2007
City: Gladwin, MI
#4

12-08-2015, 07:11 PM
(12-07-2015, 11:13 PM)Chuck Schwark Wrote:  Looking for the values of the dual-pot volume control on the Model 38-690.

All Philco service bulletins and 1937-40 Philco parts catalogs do not show the resistances 
of the two sections.  Only the Philco part number:  33-5240.

Seems Philco never published parts values in their 38-690 service bulletin. 

Any help appreciated,

Chuck

Hi Chuck,

While the parts list does not show the values, they are printed on the schematic as part #75 at 500K and part #76 at 100K.

BTW, keep up the good work. I have your data package for my 38-690 code 125 and it has been invaluable.

Thanks again!

Ed
(This post was last modified: 12-08-2015, 07:16 PM by etech.)
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Messages In This Thread
38-690 volume control - by FStephenMasek - 12-07-2015, 03:11 PM
RE: 38-690 volume control - by Chuck Schwark - 12-07-2015, 03:40 PM
RE: 38-690 volume control - by Chuck Schwark - 12-09-2015, 10:22 AM
RE: 38-690 volume control - by SteveJB - 12-18-2017, 08:42 AM
RE: 38-690 volume control - by morzh - 12-18-2017, 09:21 AM
RE: Resistance values for 38-690 vol pot - by etech - 12-08-2015, 07:11 PM
RE: Resistance values for 38-690 vol pot - by sam - 12-09-2015, 11:50 AM



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