Hello everyone, been here lurking for sometime. Longtime musician, short time amp builder. My question, I have an old Roland Cube 20 (the old orange one), it uses a TA7200P to drive the reverb. I had it in the shop and the tech could only find one source for the chip and their minimum order was $100. Does anyone know of a source or a substitute chip for the TA7200P. This is a little frustrating as I google the chip number and inquired at three or four places with only one response saying it was not in stock. Any help is greatly appreciated. Thanks, Jim