I've recently had an issue with the sound of my Ultra head. The clean channel became distorted. and I lost a lot of power on my distortion channels. I thought it would be best to change out the tubes as the starting point to troubleshooting the problem. I changed out both the preamp tubes and the power tubes to matched GT's and now the head does not even power up. Is there a fuse or something like that that I may have blown or is it likely that I've created another issue? I'm not the most technical person when it comes to amps. Any help would be appreciated. - Thanks.
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Peavey Ultra Plus doesn't power up
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There are fuses inside the amp and it's most likely the culprit. I would think the caps are discharged by now but I have to warn you there are lethal voltages that can be stored so take caution. One of the new tubes may be bad so you might try them one at a time to see if the fuse blows again. When you get all of the tubes to light and still have problems with volume try patching a guitar cable from send to return and see if you get it back. The front panel lights will only work with the footswitch and it is also possible a faulty pot could cause the volume loss.KB
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