marshall JTM 30 bias question.

[JC@]

Would it be worth the trouble to mod the bias supply for adjustable bias?
After a quick look at the schem it seems like the negative voltage is set via zener diodes...

[JC@]

Would it be worth the trouble to mod the bias supply for adjustable bias?
After a quick look at the schem it seems like the negative voltage is set via zener diodes...

I did a search and this issue has already been covered.
Sorry.

[Amp Kat]

FWIW I try to modify if easy enough all the amps out there that have fixed resistor bias setups to adjustable bias. The next tech down the road will love you for it.