I carved out some more time to work on the amp today. I managed to get the entire power supply section wired in.
Of course, this doesn’t include the main inductor or the main dropping resistor (if required). These get wired in after the top plate is mounted to the chassis. Here’s how the underside of the top plate looks this afternoon.
The reservoir capacitor is to the left of the rectifier socket. This was in place in the last update. But now the main filter cap is in place to the right of the rectifier socket as well as the four separate isolation filters. These are two L-C filters for the power stages and two RC filters for the signal stages.
I know that some people consider this power supply approach excessive. But this approach yields both a hum free amplifier and virtually guarantees excellent channel separation. It’s only four additional electrolytic capacitors and two inexpensive chokes. Personally I think it’s well worth the minor cost and effort. And now that this is done, it’s time to get started on the amplifier proper.
As always, questions and comments are welcome.