NO sound out of 30 watt Peavey Delta Blues!

[fluffhead]

Greetings everyone!

I am having some serious trouble with my wonderful Delta Blues tube amp that I have had for a year or so. Today I plugged in to play and after about 15 seconds of playing my sound stopped. There was no "CRUNNCH!!" or "WAAAAAAAA" when the sound stoped, it just went dead silently.

I troubleshooted it myself by replacing cables and trying different channels, unplugging it, etc. and NO change.


My tubes have been recently replaced in the last 3 months and they still glow when the amp is on, as well as the orange power light, so it gets power, but no sound.

Some help would be oh so magnificent.
-Thanks

[Enzo]

Pull one wire off the speaker, and touch the terminals of a 9-volt battery to the speaker terminals briefly. If it stays silent, the speaker has died. If you get a pop or thump with each touch, the speaker is working.

More likely is a blown fuse inside the amp. A failed power tube is likeliest cause of fuse blows.

Did you buy it new? it would still be under waranty if so. Although the tubes woulod not be covered.

[fluffhead]

I appreciate your help Enzo, however I DO get a thump when I touch a 9v to the wire, so the speaker is working.

[Enzo]

OK, then the problem is inside the amp. You need to dismount the chassis from the cab, and go inside. Check the fuses. There are two side by side on the end of the middle board.

The voltages inside a tube amp can KILL YOU. Always work with the amp unplugged, and off for 10 minutes.

Pull fuse from its clip and test it with a meter. You can sometimes see obviously blown fuses, but they can sometimes LOOK OK when they are not. If you measure it with a meter while still in its clip, the circuit path can fool the meter. Remove the fuse for test.

And if a new fuse pops as soon as power is applied, then we start to think bad power tube.

[fluffhead]

It sounds like it is probably a fuse issue, but I don't have a meter. I suppose this is as far as I can go by myself, and I'm going to taking in to the local amp repair man tomorrow when they open. I'll tell him what you told me.

Thank's a lot Enzo, you guys are really friendly on this phorum!