Doepfer

> Hi again.
>
> I just received the replacement A-105 and on testing the module
> it still generates the same short click on modulation of the CV
> inputs with any shape wave.
> It seems quite unfeasible that two of the same modules would be
> faulty in the same way, so maybe it is me at fault!!!
> Should this be happening? It is quite a loud sound that it
> produces as the LFO modulates... like I stated before: with no
> other inputs and the level at zero.
>
> Any suggestions would be most welcome.
>
>
> Kind regards

I'll take an A-105 module from stock and try it out. The A-105 nothing but
the standard application of the SSM2044 filter circuit. How loud is the
sound compared to the normal audio signal (i.e. with full audio level just
before clipping). Maybe it's the control voltage feedthrough which is
specified with -36dB in the SSM2044 data sheet. So if the click is
about -35dB compared to the full signal it's probably the control voltage
feedthrough.

Best wishes
Dieter Doepfer