Last week I blew up my Ruby amp with a reversed 12V adapter pin.(Ruby Bassman amp from runoffgroove.com Ruby) It's one of those adapters with different pin-sizes, and I placed it the wrong way so the center became plus instead of minus...
Anyway, the 100uF elco and the IC were dead so I replaced them. I also replaced the JFET allthough it seemed okay. All the measured voltages around the IC and JFET are right.
Now there is a rattling noise all the time, and it changes speed when I turn the volume and gain knobs.
There is a signal when i play my guitar, but it's heavily distorted and it only comes through when I play hard.
Does anyone know what it is?
Anyway, the 100uF elco and the IC were dead so I replaced them. I also replaced the JFET allthough it seemed okay. All the measured voltages around the IC and JFET are right.
Now there is a rattling noise all the time, and it changes speed when I turn the volume and gain knobs.
There is a signal when i play my guitar, but it's heavily distorted and it only comes through when I play hard.
Does anyone know what it is?
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