Tube Amp Repair

Tube or solid-state, this section goes to eleven!

Tube Amp Repair

Postby dancoxnz » 26 Jan 2017, 08:36

Hi!

I have an old Novik Red Bear, it seems to be shorting one of the recitifier diodes and blowing the main fuse, ive changed it a few times now, was wondering if anyone had any ideas as to what might cause a diode to short??

Thanks very much

Dan
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Re: Tube Amp Repair

Postby emmepicsd » 08 Feb 2017, 21:28

If may be useful here are the schematics.
http://www.triodeel.com/schindex.htm
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Re: Tube Amp Repair

Postby alexradium » 08 Feb 2017, 21:47

heavy currents,it can be a tube pulling too much or too old filter capacitors that draw lots of current
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Re: Tube Amp Repair

Postby dancoxnz » 09 Feb 2017, 06:10

Thanks! Turns out my output tranny was shorting, was able to disconnect the faulty winding and get it back up and running (just need to rewire my cab now)
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