Originally Posted by izquierdaste
Finally I replaced the stock opamp with a socketed lm4562. I might also try 2107 and 2111 since I have a couple of those. I haven't had much time to listen to yet, but initial impressions are positive.
Great job. Thumbs up from me. I am very much interested in your test results on how it sounds.
A friend of mine has wired his unit to a car battery, which is also connected to a solar panel charger. He posted pictures on the wigwam forum. I might ask him permission to post them here as well. His wiring looks better than mine.