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Post subject: Re: Help please --Re: 1997 Fender "The Twin" amplifier
Posted: Wed Oct 08, 2014 8:48 am
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Location: Province de Québec, Canada
drtwaits wrote:
With reverb volume on "0" there is still a noise -- it sounds like a reverb valve



What is the sound of a reverb valve ?

Remove both valves and power amp ON . listen

Yes you could need some new valves , but you could need only to clean valves socket contacts with contact cleaner . if you don't have , just remove and put valve back in their sockets few time this could remove "dirt " on the contacts.


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Post subject: Re: Help please --Re: 1997 Fender "The Twin" amplifier
Posted: Thu Oct 09, 2014 1:35 am
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Now found out from an amp Tech that it is the two Tubes/Valves at the extreme LHS of the amp (when you are looking from the back) and they are on the row nearest the front control panel.
One is an AT7 and the other an AX7.


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Post subject: Re: Help please --Re: 1997 Fender "The Twin" amplifier
Posted: Thu Oct 09, 2014 1:48 am
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So the amp is fix now ?


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Post subject: Re: Help please --Re: 1997 Fender "The Twin" amplifier
Posted: Thu Oct 09, 2014 2:17 am
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I will let you know when the new valves :lol: arrive. Hopefully it will solve the problem. Thanks again for your help
Dave


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Post subject: Re: Help please --Re: 1997 Fender "The Twin" amplifier
Posted: Thu Oct 09, 2014 2:25 am
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How do you know these 2 valves are bad ?

A tech test them ? How ?


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