Hi,
I've a Marshall Super tremolo 100w of year 1969.
The problem is with treble notes( 12th fret in one string guitar for example) the amp sounds a double note or ghost note.
I read about this issue which is usually by the 120Hz filter.
I tried change the Filter caps in B+ to 47+47uF caps , and screen filter caps 100+100uF (even 220uF). I change the preamp filter cap to 50+50uF. (all caps F&T).
The PI filter cap is 50+50uF LCR( It is the only one not changed)
I changed all tubes also.
And the ghost note in treble sounds is equal.
I know that is a famous problem in these amps. Someone knows how to remove the ghost notes and the amp sounds correct.
track with the sound problem (second 0:14 ...) https://dl.dropboxusercontent.com/u/...%20%281%29.m4a
Photos: https://dl.dropboxusercontent.com/u/...remolo100w.zip
Thanks
I've a Marshall Super tremolo 100w of year 1969.
The problem is with treble notes( 12th fret in one string guitar for example) the amp sounds a double note or ghost note.
I read about this issue which is usually by the 120Hz filter.
I tried change the Filter caps in B+ to 47+47uF caps , and screen filter caps 100+100uF (even 220uF). I change the preamp filter cap to 50+50uF. (all caps F&T).
The PI filter cap is 50+50uF LCR( It is the only one not changed)
I changed all tubes also.
And the ghost note in treble sounds is equal.
I know that is a famous problem in these amps. Someone knows how to remove the ghost notes and the amp sounds correct.
track with the sound problem (second 0:14 ...) https://dl.dropboxusercontent.com/u/...%20%281%29.m4a
Photos: https://dl.dropboxusercontent.com/u/...remolo100w.zip
Thanks
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