Tubes Asylum

RE: Correct Fuses - I seem to have just blown a BBS-1

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PeterI

In Reply to: RE: Correct Fuses. posted by DustyC on March 04, 2010 at 07:49:43

Thanks for the advice. I seem have plate fuses going bad on right chan. I had BBS-1, got them at local hware store. I think they have KTK also, will go back. So 1 amp is the correct size?

Are tubes on that side drawing too much voltage/current? Or is my B+ just too damn high?

Pete

Follow Ups:

RE: Correct Fuses - I seem to have just blown a BBS-1 - DustyC 17:19:24 03/04/10 (1)
Yes, 1 amp. Check to see if a KTK fixes the problem. If the tubes draw enough current to be "too high", then the fuse pops. I don't think high B+ would cause the snapping. At least in my case it didn't.
If the output tubes are fairly old, you might want to replace them. Often a tube will "flash over" and take the fuse with it. It may not do it again for awhile, or happen a few minutes later.
I had one tube give me trouble (blew 2 fuses before going orange on the plates),and after replacement, amp has been trouble free.
- RE: Correct Fuses -Thanks - PeterI 22:33:32 03/08/10 (0)
  thanks for the tips. I replaced the fuses again, KTK-1. I don't think they were seating right before. Anyway, I still have the pop (snap) in R channel. I prodded all the joints w/ a wooden stick on the circuit board while hot (being super careful). Nothing has revealed itself yet.
  
  Pete

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