igiveup
Member
I'm working on one of these now and I can adjust the bias to 25mv, but as it continues to warm up one channel will drift down to 15mv with 18mv as high as it will adjust too. The other channel is perfect and stable. I'm going to replace Q5 and Q6 and the diodes but I don't have the 2SC1746 or 2SC1452 in my stock of old parts. What is the best subs you guys have been using as I can't seem to find a good replacement. Hopefully it's not the thermistor in the bias circuit as I bet it's going to be impossible to track down.
I will be re-capping this amplifier as well and plan on keeping it as my daily driver in our basement.
Thanks in advance
I will be re-capping this amplifier as well and plan on keeping it as my daily driver in our basement.
Thanks in advance
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