Guest softmonaut Posted September 20, 2014 Report Share Posted September 20, 2014 Hi,I have to replace some scratchy potentiometers used as volume potentiometers in a Rocktron Velocity 300 guitar power amp from the early 1990's.These parts are labeled15A100K 9252 andTØB10K 9303Does someone have some informations about them or a source where I can get information?THX, regardsJörg Quote Link to comment Share on other sites More sharing options...
Guest jhunax Posted October 6, 2014 Report Share Posted October 6, 2014 I think the value are 100K and 10K. You can bring that potentiometers at the electronics shop near you. Quote Link to comment Share on other sites More sharing options...
Guest liquibyte Posted October 6, 2014 Report Share Posted October 6, 2014 I think the value are 100K and 10K. You can bring that potentiometers at the electronics shop near you.Not necessarily. These are slide pots I believe.http://www.tedss.com/2022001766http://www.tedss.com/2022000119 Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 6, 2014 Report Share Posted October 6, 2014 I use "contact cleaner" to fix scratchy sounding pots. Sometimes a coupling capacitor leaks DC current into a pot that makes a scratchy sound that is fixed by replacing the capacitor. Quote Link to comment Share on other sites More sharing options...
Guest jhunax Posted October 8, 2014 Report Share Posted October 8, 2014 I use "contact cleaner" to fix scratchy sounding pots. Sometimes a coupling capacitor leaks DC current into a pot that makes a scratchy sound that is fixed by replacing the capacitor.lacquer thinner will be used too. Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 8, 2014 Report Share Posted October 8, 2014 lacquer thinner will be used too.Lacquer thinner will probably dissolve plastic parts in a pot and deposit it as a mess all over the resistive track.My contact cleaner is "safe on plastics, leaves behind zero residue and is fast drying". Why not use it? Quote Link to comment Share on other sites More sharing options...
kbyrne Posted December 8, 2014 Report Share Posted December 8, 2014 I saw on E-Bay a lot of pots for guitars electric ect. Punch into top 100k, 10k and view them like I did while looking for 250k Alps Quote Link to comment Share on other sites More sharing options...
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