intermittent Hiss/Hum Help???

[TheOuvs]

Does anyone know what would cause my new build to have a hum/hiss that seems to build up then fades away? All the tone is still there, there is just this build up off a hum. If I turn the stand by switch off it goes away for awhile. Again, the hum is very iintermittent and fades in and out.

[billstets]

I'm no expert, but have tried swapping tubes. That always seems to be the first thing to try. If it's not a tube, I'd say a bad solder joint. But there are much more knowledgeable people than me here.

[TheOuvs]

Thanks Bill,

I have checks the solder joints and a couple were suspect, re-flowed them and am now testing. We'll know soon.

Thanks,
Kris

[billstets]

what about the tubes?

[TheOuvs]

Tested for about 4 hours yesterday and the hum / hiss seems to be gone. Could have been a solder joint or a wire that extended a little too far past the solder joint (did some trimming). Thanks for your help.