What you're hearing is clock noise. This module needs an external filter to filter out that noise.

--- On Fri, 12/26/08, mm123 ah < mm123ah@... > wrote:

> From: mm123 ah < mm123ah@... >
> Subject: 1 BBD module question
> To: doepfer_a100@yahoogroups.com , mm123ah@...
> Date: Friday, December 26, 2008, 5:53 PM
> heres a question about the doepfer bbd module function:
>
> even without an incoming signal and with feedback set to
> zero, as i sweep clock time from minimum to maximum, i hear
> an audible oscillator that increased in pitch until around
> 12:00 position when im assuming its going above audio range.
> i cant help but think this is a defect. is something wrong
> or is this the way it was designed if its abnormal, any
> suggestions as to how to fix it
>
> thanks
> mini
>
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