sometimes when an lfo and bbd are in the same psu i can hear very silent lfo pulses in the
output. i'm using the low cost psu.
is the bbd also a sensitive audio processing module (should i use a ring core psu for less
noise )

+ also, is it possible to build in a filter in the bbd module to suppress the clock (like in
the serge wilson delay) anyone done this or got an idea when the filter for this module
will be ready

best, floris

--- In Doepfer_a100@yahoogroups.com , <hardware@...> wrote:
>
> > i have now two doepfer systems, one has the old a100 PSU and the other
> > has the newer PSU2, with the ring core trafo. i noticed a difference
> > in the output levels, the PSU2 deliver higher output, easy to distort
> > at maximum, it s this normal or perhaps i did something wrong
> >
> > thanks for your help
> >
> > Miguel
>
> The old PSU cannot be the reason for a smaller output - provided that the
> old PSU is not defective or mis-adjusted. Both supplies deliver +12V
> and -12V. The only difference is the max. output power (650mA vs. 1200 mA)
> and the type of transformer. The transformer of the old PSU is not the ring
> core type and may cause additonal hum noise in sensitive audio processing
> modules (mainly in the spring reverb A-199).
>
> Try the samle module in both frames (e.g. an A-110). If there are indeed
> different output levels the old PSU is probably defective or mis-adjusted or
> overloaded (i.e. more tha 650 mA total current).
>
> Best wishes
> Dieter Doepfer
>