Substituting A 470K Volume Pot For A Higher Value - UK Vintage Radio Repair and Restoration Discussion Forum

Orthicon · 29th Mar 2015, 4:12 pm

Hi All,
I am in the current process of restoring a KB FB10 Midget Radio. The original Volume Pot is a 470K Log SPST and needs replacing. I don't have any 470K replacements, but do have a load of new 1Meg Log DPST pots.
Would it be OK to substitute and use one of these instead?

Ian.

G8HQP Dave · 29th Mar 2015, 5:18 pm

Almost certain to be fine.

paulsherwin · 29th Mar 2015, 5:21 pm

Agreed.

60 oldjohn · 29th Mar 2015, 7:07 pm

If it was critical you could add an 820k resistor across the pot track.

John.

Orthicon · 29th Mar 2015, 9:29 pm

- Thanks Guys,
1Meg will be fitted.

Ian.

29th Mar 2015, 4:12 pm	#1
Orthicon Retired Dormant Member Join Date: Aug 2011 Location: Cambridge, UK. Posts: 97	Substituting A 470K Volume Pot For A Higher Value Hi All, I am in the current process of restoring a KB FB10 Midget Radio. The original Volume Pot is a 470K Log SPST and needs replacing. I don't have any 470K replacements, but do have a load of new 1Meg Log DPST pots. Would it be OK to substitute and use one of these instead? Ian.

29th Mar 2015, 5:18 pm	#2
G8HQP Dave Rest in Peace Join Date: Sep 2008 Location: Solihull, West Midlands, UK. Posts: 4,872	Re: Substituting A 470K Volume Pot For A Higher Value Almost certain to be fine.

29th Mar 2015, 5:21 pm	#3
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,970	Re: Substituting A 470K Volume Pot For A Higher Value Agreed.

29th Mar 2015, 7:07 pm	#4
60 oldjohn Dekatron Join Date: Dec 2004 Location: East Yorkshire, UK. Posts: 3,988	Re: Substituting A 470K Volume Pot For A Higher Value If it was critical you could add an 820k resistor across the pot track. John.

29th Mar 2015, 9:29 pm	#5
Orthicon Retired Dormant Member Join Date: Aug 2011 Location: Cambridge, UK. Posts: 97	Re: Substituting A 470K Volume Pot For A Higher Value - Thanks Guys, 1Meg will be fitted. Ian.