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Volume control Value needed

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Volume control Value needed Empty Volume control Value needed

Post by Switcher on Wed Feb 18, 2009 2:24 pm

I've got an early Phonola/Grimes here that needs a new volume control. Serenader 8 tube. 1930-'31

Centra labs Number 25-423 Has someone a older Centralabs catalog that they could check on the values of this dual control.

Both a volume and RF gain control.

Thanks
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Post by exray on Thu Feb 19, 2009 12:14 am

I'm going to take a VERY wild guess before trying to research the schematic.
Based on your description of "volume and RF" I'd suspect it to be a few hundred, maybe up to 2k?, and it may have a 'stop' amount at the low end.

The basic scheme was pretty common in older TRF sets so its not unobtanium nor critical. If it were me I'd go to Mark Oppat and do the obligatory flinch when opening the wallet. I think Mark can set you right.
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Volume control Value needed Empty Re: Volume control Value needed

Post by Switcher on Thu Feb 19, 2009 4:49 pm

Thanks Mr exray. I will give Mark a call.
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