Please help me - New amp failing light bulb limiter test

[Tillydog]

Good news!

[Kassie]

Ok Mike, as you were

I am looking forward to the topic. Especially since I am thinking about installing a vvr as well. Are you doing the whole amp or just the endtubes?

I see that you don't have the NTE mosfets... I can see the partnumber IRF9610. What's the other mosfet? I can't locate NTE mosfets here in Holland so allready have been looking for replacements..

[Tillydog]

I can see the partnumber IRF9610. What's the other mosfet? I can't locate NTE mosfets here in Holland so allready have been looking for replacements..

I think the one you can see (the IRF9610) is for the (negative) bias supply regulation on the VVR3, and the 'other' MOSFET is the B+ regulator (NTE2973, I think - Dana has previously posted schematics, etc. on these forums).

I have used IRF830 to regulate B+ on an Express - YMMV