03-23-2013 07:36 AM - edited 03-23-2013 07:44 AM
I just finished a Fender Champ kit from triodeelectronic, all went well, I made the chasses from .08 alum sign material, drilled the holes, scored the bends .02 deep with my wood blade on my radial arm saw, .005 deep cut at a time then bent with some force by hand, no brake needed, made some stencils for the black face, designed a front ported cab for better bottom...
But I keep blowing the 1 amp slow blow fuse when I turn off the stand by. The second fuse lasted for a while and the amp sounded great at all volumes, but when I turned it on again to try my Strat and then turned off the standby, a couple of seconds went by then pop the fuse blew. I checked the amp draw,- on Standby it's .22 amp, -Standby off it's 2.24 amps. (for about a second using a 1.5 amp fuse), then I turned it off not to blow another fuse. I am using a larger 15 watt OT. so to also use a 6L6 but I tested it with 2 diferent 6V6'S (JJ) in case the power tube was bad. The tech guy at trio has not got back with me after several days. My speaker tested at 7 ohms, I'm using the 8 ohm socket.
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03-23-2013 08:00 AM
This is odd. I started the thread in the AMP section but after over 120 views, no comments back, is the forum working right? Now here over 20 views, no replies??
03-23-2013 09:22 AM
03-25-2013 04:19 PM - edited 03-25-2013 04:25 PM
when that sort of problem occurs, it's good to remove the tubes and apply power - if the fuse does not blow, power down and add the tubes one at a time starting with the rectifier (output tubes in pairs if applicable) and see which one causes the fuse to blow - the very thing that makes tube amps great is also their weakness
there is a good chance the rectifier tube is the problem in the case of the OP however, if it is a home build and the amp has never actually worked properly you may need to look for a potential mistake in the wiring
03-30-2013 02:44 PM
Well I found the problem yet even after 500+ views with more detailed photos from the post in the Amp section + this section nobody found it, yet even in the photo, it shows the very obvious problem, and you do not even need to know the circuit.
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