Hot Rod Deville

[Bluesmachine]

Hello All !!

Can anyone educate me on an issue I am having with my HR Deville by chance ??

New tubes were installed recently to hopefully elmininate a problem of the amp making a sound which could be best described as a Fuzz Face with a low battery. It's pretty much a distorted farty sound more prevalent in the low frequencies on the clean channel.


Thanks Much !

[rock_mumbles]

I'd check R78 and R79 330 ohm 5 watt resistors in the +/- 16V supply ... the resistors fail, come unsoldered or the pcb often gets damaged under them ...

[billyz]

Check the plate load resistors to the phase invertor. Frequently one fails and causes exactly what you described.