UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Need help with antique replacement volume control.

Diabolical Artificer · 31st Oct 2020, 8:03 am

It won't,is pin 3 ground? If so it's getting no signal. All R15 is doing is acting as a potential divider, EG two resistors in series, tapping off part of the signal, so if you get a spare 1m pot connect one outer tag to T38, the other outer tag to ground then adjust till it sounds about right. This will alter R15's resistance/impedance to 500k, but it just might work willlittle ill effects.

Andy.

31st Oct 2020, 8:03 am	#18
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,669	Re: Need help with antique replacement volume control. It won't,is pin 3 ground? If so it's getting no signal. All R15 is doing is acting as a potential divider, EG two resistors in series, tapping off part of the signal, so if you get a spare 1m pot connect one outer tag to T38, the other outer tag to ground then adjust till it sounds about right. This will alter R15's resistance/impedance to 500k, but it just might work willlittle ill effects. Andy. __________________ Curiosity hasn't killed this cat...so far.