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V2 dead clean channel
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<blockquote data-quote="www.funkymunkymusic.com" data-source="post: 10922" data-attributes="member: 984"><p>the 12AT7 run unevenly by design in the amp, the cathode voltage isn't very high, which gives it the warmth and the sponginess of a tube amp, so, occasionally the 12at7's go bad in them.....that could/likely is what is causing it, it sounds like something in the preamp, IF the other channels are working.</p><p></p><p>on the input of that amp, the signal immediately hits an opamp (solidstate preamp stage) which fattens the signal up....it then goes into the TUBE preamp stage.....sounds like a PRE tube.</p><p></p><p>However, if you are that close to the repair facility and it is under warranty, go that route.</p><p></p><p>Jon</p></blockquote><p></p>
[QUOTE="www.funkymunkymusic.com, post: 10922, member: 984"] the 12AT7 run unevenly by design in the amp, the cathode voltage isn't very high, which gives it the warmth and the sponginess of a tube amp, so, occasionally the 12at7's go bad in them.....that could/likely is what is causing it, it sounds like something in the preamp, IF the other channels are working. on the input of that amp, the signal immediately hits an opamp (solidstate preamp stage) which fattens the signal up....it then goes into the TUBE preamp stage.....sounds like a PRE tube. However, if you are that close to the repair facility and it is under warranty, go that route. Jon [/QUOTE]
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V2 dead clean channel
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