--- In Doepfer_a100@y..., "mdimmm" <mdimmm@y...> wrote:

> As anyone who owns a spring reverb module knows, the

A-100's

> transformer generates a lot of hum. In addition to the spring
> reverb, I use a lot of electromagnetic pick-ups (like on a guitar)
> as external signal inputs and find the hum almost

unacceptable

> with this set-up. I hope someone might have suggestions for
> shielding the transformer, or knows of other ways to decrease
> the hum generated by the A-100.

dimm,
re: reverb hum, i drilled a small hole in the back of the case and
soldered a longer rca cable to the module so the springs live
outside the A100 case completely. not a trace of hum. (you
could just get an extention to the cable that's already there but
that requires drilling a bigger hole for the connector to pass
through.) one benefit for me is this also allows manipulation of
the spings if so desired, which can be very interesting,
particularly when the reverb is patched thru the resonance
feedback loop on a filter.
duff

ps message 1000 wow! cheers to bakis for starting this list!