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In Reply to: RE: Friend's Jolida 302B blowing fuses....why do they use fast blo fuses in this thing?!? posted by Paul Kehayas on January 12, 2017 at 17:06:22
4. Replace C8 & C9 470/400 with 220/300 just removed
That would lower the turn on surge current, not increase it.
Does the fuse blow at turn on?
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Follow Ups:
It's done it at turn on and also within anhour. All new tubes in the thing too. They tested fine.
Paul
There has to be a leaky cap somewhere.
I would look at the caps that used to be C6-C7 that are now in the C8-C9 position.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
I sent the parts to Paul in January of 2009 - so the now 8 year old caps that were installed then should be fine. But the relocated 220 uf caps are getting a bit long in the tooth so I agree with Tre. They could be acting up.
It might be wise to replace them just as a matter of course after all the years of service.
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