Help CJ premier 4 blowing fuses ??

If you really get stuck send me the tubes and I will test them and send them back. email me if you need to go this route.

thanks
-Ed

Yes it is the big plate fuse, I believe. the amplifier has a large fuse for each channel and then another fuse for the amplifier itself. It blows the right channel fuse. nobody around these parts has a tube tester so that's kind of the reason I posted this in the first place--I don't want to try the trial & error method if possible.

Is this the big "plate fuse" that's on the back panel? (I have premier 5's) If so then that's the high-voltate supply to the plate from the tranny, I think. CJ will send you a schematic via email if you need one. Agreed I would check tubes first. Best bet is if you have a tube tester, pull all the tubes and run them through, esp. checking for shorts between elements on the EL34s. No sense using the amp as a "tube tester" if you can help it! If you do need service, the place to use is http://www.musictechnology.com/ - owned and run by Bill Thalmann who is the original designer of these amps (he worked for CJ for 20+ years). Had good luck with him myself on the CJ Pr. 5s.

Good luck!
-Ed

Be careful when swapping potentially problematic tubes.
If it took out anything more than the fuse in the first amp/channel it may do the same in the 2nd and compound your repair bill.

It is usually a bad tube. Swap the tubes between channels.
If the problem moves to the other channel, buy new tubes.
If the problem stays in the left channel, you need a technician to repair it.

It is amazing how much those fuses cost.