#1
i was jamming around today and noticed that my 5150 Is making a strange noise. on all channels it has a knocking sound coming through the speakers. ive had the power tubes in for about 7 months and have been rolling different preamp tubes through it like I normally do for my amps. but this is new. any ideas?
Live Rig
Michael Kelly Custom Shop Plum Telecaster
Michael Kelly Custom Shop Plum Patriot


EVH 5153 50w
Jet City 2x12
Custom Board

It is NOT trash metal it is tHrash metal...get it right
#2
How often does it do the knocking noise
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#3
I would guess preamp tubes. I had a similar problem and that was the fix. All it takes is 1 bad one.....and just because the tube was bought new doesn't mean it wasn't mishandled.
#4
its a constant knock about 3 seconds apart
Live Rig
Michael Kelly Custom Shop Plum Telecaster
Michael Kelly Custom Shop Plum Patriot


EVH 5153 50w
Jet City 2x12
Custom Board

It is NOT trash metal it is tHrash metal...get it right