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Rupert Hirst "If I can't beg,buy,borrow or find something then I guess I will just have to make it" ...TallmanLabs
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Nope its a dual rail Op-Amp +/- the input voltage is halved. 5v more like 4.75 after losses would make it 2.5v per rail.
Carefully, for me to add a pot... it was not worth the risk of failure after the pour, especially when I can adjust it from the source.
Google
Any audio grade Dual Op-Amp will do