Hartke 3500 No Sound, Not blowing fuses.

[Enzo]

Might be helpful to use part numbers. The pos side driver?

160v 1.5A NPN 20-25W TO220

Just about anything that meets those specs would work.

2SC3298, 2SC2238, 2SC2344

I see 2344 in stock at B&D Enterprises.

[pokey17247]

Q309. Pos. side driver