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Re: Shorted PT secondary: next debug step?

1/21/2006 12:26 AM
R.G.	Re: Shorted PT secondary: next debug step? Do yourself a favor - get a light bulb limiter in front of this thing first. That will keep you from either blowing more fuses or burning out more of the amp. Then run through the "blows fuses" section of the Tube Amp Debugging Page. If the power tranny has a shorted secondary, then you should use the second PT for debugging, or just get a replacement. The likeliest cause of the shorted secondary is a shorted tube powered by the 5V. A short on a filament line will usually burn out the secondary winding, and only then pop the primary fuse.

1/21/2006 12:26 AM

R.G.

Re: Shorted PT secondary: next debug step?

Do yourself a favor - get a light bulb limiter in front of this thing first. That will keep you from either blowing more fuses or burning out more of the amp.

Then run through the "blows fuses" section of the Tube Amp Debugging Page.

If the power tranny has a shorted secondary, then you should use the second PT for debugging, or just get a replacement.

The likeliest cause of the shorted secondary is a shorted tube powered by the 5V. A short on a filament line will usually burn out the secondary winding, and only then pop the primary fuse.