Quote:
Originally Posted by old_tv_nut
...
3) Chase the hum bars...
|
What do you mean by this?
Quote:
Originally Posted by old_tv_nut
...
To make sure I'm following right, does the cathode of VT6a (pin 3) go to pin #6 of plug P7 and hence to R201?
|
Yes
Quote:
Originally Posted by old_tv_nut
By the way, where are you getting the 12 V supply for the amplifier? Any hum, noise or instability of the supply will transfer directly to the output on the collector.
|
This is a good point. I can try various power supplies to see if the problem goes away/changes with another supply. I'll take a few home tonight and experiment.