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…