• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Yaqin 100b channel imbalance

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Good day! I had this amp in for service. One of my complaints a imbalance between left and right channels (also a burnt resistor). The technition told me that he saw what looked like excess wire rolled up and placede in a corner. He said he took it out and put it back and the imbalalnce went away. When I got the amp home, it was most certainly corrected, for about a week! I'd like to take a look at this but cannot figure out how the top cover comes off. The bottom plate was easy. Any directional help? Also, is any one familar with this excess wire? I did note a post in this forum on on identical problem, but there did not appear to be a solution posted. Help most appreciated!

Larry
 
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