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Author Topic: Early vs. Later Tremolo Photocell Bug wiring?  (Read 220 times)

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Offline Watson

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Early vs. Later Tremolo Photocell Bug wiring?
« on: September 30, 2020, 10:13:14 am »
Can anyone shed any light on the two variants of the tremolo bug/roach wiring on the 100s/200s/S*** amps?  SUNN seems to have changed the design in 1968 or 1969.

I've attached the two versions on the wiring that I see on the various schematics.

Any insight into the change or timeline of the change would be appreciated!