> Hi Dieter,
>
> Understandable.
>
> It's a nice filter, I have two, will you be keeping a stock of spare
> CEM3320's for service or should I start negotiating with you to buy a
> spare chip
>
> Many thanks
>
> Rgds
>
> David

Whenever the production of a module has to be stopped we keep a couple of
special circuits for service. The quantity of these spare parts is taken
from our experience while the module was available (i.e. how many of the
circuits were required as spare parts during the availability period).
Luckily the CEM3320 are very reliable. I cannot remember that we had a
defective CEM3320 except those cases where a wrong or reverse power
supply/bus connector was the reason for the defective circuit.

Best wishes
Dieter Doepfer

P.S. You can order spare CEM3320 (or other CEMs) even from Paul
Schreiber/Synthtech in USA