Weird crakling noise

[cybertop77]

Hi everyone,

I have a problem on my 50w kitt.

On the channel 1 all is normal, on the channel 2, too. But when i plug my guitar on the both channels I have a weird "farting" noise... Less volume... If i put the treble and the presence on 0, the weird sound disappears...

Thus, I changed my pots, and now, the weird sound appears also in the channel one alone... I tried to switch the preamp tubes and the power tubes.. But nothing changes...

Many thanks in advance!

[danman]

We will probably need several clear pics of the tone control wiring, tube sockets and turret board to help make a diagnosis. Could be a wiring or ground mistake or possibly just a lead dress problem. Have you tried switching out the preamp tubes with known, good tubes to be sure that you don't have a faulty one?

[cybertop77]

For the whole interior photo, here is the link : http://www.noelshack.com/2015-34-143992 ... c-0014.jpg

[cybertop77]

I tried to move my pots... When the presence is on 10, the noise disappears.