TDA7293 “base PCB” populating

I’ve been going over the single TDA7293 PCB’s with the DMM to find how to out how to implement the schematic for the enhanced chipamp with output transistors (2SC5200/2SA1943).

The heatsinks I will use, with 90*90mm 24Vdc brushless fans (speed will be controlled using a simple lm317 circuit with adjustable Vout).

The heatsinks are 150*100mm. I use these and the fans to get a somewhat compact amp.

More to come…


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