Broken volume pot on Valvestate 8080

geff · 11-17-2009, 08:30 AM

Hi there,

I've managed to snap the volume pot shaft on my Valvestate 8080. The amp is quite old and well gigged. It's got crackly pots and the valve could do with a replacement. Ultimately I'm just looking to put it in a reasonable state in order to ebay it.

I don't really have much experience with amplifiers but my dad used to be an electronics teacher so I'm sure he can assist. And I'm not too bad with a soldering iron myself.

I just need to replace the volume pot but I cannot find what model pot to replace it with anywhere. Can anyone help?

While it's open I think a good clean of the other pots and probably replacement of the valve would be a good idea. Can anyone suggest which valve to get?

Lastly while I'm asking the experts is there anything that would be worth "tidying" up in there while I have it apart?

Thanks in advance

Geff

booj · 11-17-2009, 08:50 AM

http://www.mouser.com/catalog/catalogUSD/640/692.pdf

Don't know what you need but this is a starting point

geff · 11-17-2009, 02:16 PM

Thanks for the link and quick reply. Does anyone know the specifics?

Stoffie1974 · 11-17-2009, 06:41 PM

Hi,
Maybe this could help ... allways original parts.

Potentiometer, Potentiometer & Knöpfe

or

Tube-Town Online-Store - Marshall Potentiometer

You can build an amp from scratch at those sites, they have EVERYTHING !!
Have fun with it.

11-17-2009, 08:30 AM	#1
geff Junior Member Join Date: Nov 2009 Posts: 2	Broken volume pot on Valvestate 8080 Hi there, I've managed to snap the volume pot shaft on my Valvestate 8080. The amp is quite old and well gigged. It's got crackly pots and the valve could do with a replacement. Ultimately I'm just looking to put it in a reasonable state in order to ebay it. I don't really have much experience with amplifiers but my dad used to be an electronics teacher so I'm sure he can assist. And I'm not too bad with a soldering iron myself. I just need to replace the volume pot but I cannot find what model pot to replace it with anywhere. Can anyone help? While it's open I think a good clean of the other pots and probably replacement of the valve would be a good idea. Can anyone suggest which valve to get? Lastly while I'm asking the experts is there anything that would be worth "tidying" up in there while I have it apart? Thanks in advance Geff

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11-17-2009, 08:50 AM	#2
booj Senior Member Join Date: Jun 2008 Posts: 335	http://www.mouser.com/catalog/catalogUSD/640/692.pdf Don't know what you need but this is a starting point

11-17-2009, 02:16 PM	#3
geff Junior Member Join Date: Nov 2009 Posts: 2	Thanks for the link and quick reply. Does anyone know the specifics?

11-17-2009, 06:41 PM	#4
Stoffie1974 Junior Member Join Date: Nov 2009 Location: Belgium Posts: 4	Hi, Maybe this could help ... allways original parts. Potentiometer, Potentiometer & Knöpfe or Tube-Town Online-Store - Marshall Potentiometer You can build an amp from scratch at those sites, they have EVERYTHING !! Have fun with it.

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