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Philco 77 volume control
#12

Other manual shows 2K, but that beside the point.

This pot needs to dissipate quite a bit, huh.....3W dissipation will make it 5 to 7 W rated pot at least.

I was about to suggest trying to trick that thing: you can connect a large, say, 6-8W resistor of 2.1K in parallel to the ends of the pot (the circuit will see an equivalent of 1.72K) and try to regulate it this way, but I am not sure what the 10K pot's rated dissipation is - needs to dissipate 1/2 Watt, so needs to be 1-2W rated at least.

You can try.....


Messages In This Thread
Philco 77 volume control - by kenlew0405 - 04-21-2012, 09:55 PM
RE: Philco 77 volume control - by murf - 04-21-2012, 10:14 PM
RE: Philco 77 volume control - by kenlew0405 - 04-21-2012, 11:04 PM
RE: Philco 77 volume control - by 7estatdef - 04-23-2012, 09:25 PM
RE: Philco 77 volume control - by 7estatdef - 04-29-2012, 06:50 PM
RE: Philco 77 volume control - by kenlew0405 - 05-01-2012, 01:32 PM
RE: Philco 77 volume control - by morzh - 05-01-2012, 03:05 PM
RE: Philco 77 volume control - by Ron Ramirez - 05-01-2012, 04:02 PM
RE: Philco 77 volume control - by morzh - 05-01-2012, 04:41 PM
RE: Philco 77 volume control - by kenlew0405 - 05-01-2012, 04:59 PM
RE: Philco 77 volume control - by morzh - 05-01-2012, 05:07 PM
RE: Philco 77 volume control - by kenlew0405 - 05-02-2012, 07:16 AM
RE: Philco 77 volume control - by morzh - 05-01-2012, 05:33 PM
RE: Philco 77 volume control - by kenlew0405 - 05-02-2012, 07:15 AM
RE: Philco 77 volume control - by 7estatdef - 05-01-2012, 07:19 PM
RE: Philco 77 volume control - by Ron Ramirez - 05-02-2012, 07:25 AM
RE: Philco 77 volume control - by morzh - 05-02-2012, 07:57 AM
RE: Philco 77 volume control - by Ron Ramirez - 05-02-2012, 08:04 AM
RE: Philco 77 volume control - by kenlew0405 - 05-02-2012, 03:05 PM
RE: Philco 77 volume control - by morzh - 05-02-2012, 03:45 PM
RE: Philco 77 volume control - by kenlew0405 - 05-16-2012, 02:51 PM



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