Help me with this gut shot for my Deuce II

Ace, Version 1 and 2

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skoora
Mark II
Posts: 148
Joined: Tue Jun 12, 2007 1:35 am

Help me with this gut shot for my Deuce II

Post by skoora » Fri Feb 27, 2015 10:25 pm

OK, so my Deuce (bought used) performed great for over a year and suddenly started a serious feedback howl when taken off standby. I thought maybe just a bad tube. I open it up for the first time since I bought it and found this on V1. Any ideas what is going on here. The (copper?) foil is soldered to a resistor on the board and connected with putty to the back of the V1 tube socket.

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Gordybaby
Mark II
Posts: 95
Joined: Fri Jun 11, 2010 10:46 am

Re: Help me with this gut shot for my Deuce II

Post by Gordybaby » Sat Feb 28, 2015 8:52 pm

I own a stiletto ace head that has the same thing. Its not a mod for sound but it fixed a factory defect on the circuit board that caused both channel masters to work together instead of separately. Apparently there are more than one with this problem.

skoora
Mark II
Posts: 148
Joined: Tue Jun 12, 2007 1:35 am

Re: Help me with this gut shot for my Deuce II

Post by skoora » Sat Mar 21, 2015 5:28 pm

I eventually found out from Boogie it's just to shield a sensitive part of the circuit.

bandit2013
Triple Recto
Posts: 3142
Joined: Fri Feb 22, 2013 7:31 am
Location: North Carolina

Re: Help me with this gut shot for my Deuce II

Post by bandit2013 » Thu Nov 05, 2015 8:52 pm

I have seen something quite similar in both Mark V and Mark IV amps. Usually over a few film type capacitors.

Sometimes noise issues are fixed with goofy add-on's like this.

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