Hi John

> discontinued chips. The a-111 hi-end VCO and the new A-109 signal
> processor both use curtis chips no longer made.

For the A111 Doepfer always commented, that the 3340 might be a problem:
"The A-111 modules are sold while quantities last as the special circuit
CEM3340 used in the A-111 is no longer available! We sell the module even
without" ( http://www.doepfer.de/a111.htm)

"The A-109 will be manufactured as a limited edition because the CEM3379 is
no longer in production, but we purchased a limited quantity of these
circuits." ( http://www.doepfer.de/a109.htm)

> If not, can doepfer get some made or is it too expensive (question
> for Mr D)

I know, that Dieter together with some other manufactureres thought about
ordering a new series of the CEM 3340, but Dough Curtis said, he has to do
a series 10.000 pieces. This is too much for all participants.

> Do these chips ever die or am I talking rubbish and worried about
> nothing

I know that the CEM3340 sometimes dies (not very often), I never heard it
from the later filter series.

Florian
--
Florian Anwander |ConSol* HP-Support
Tel. +49.89.45841-133 |Consulting&Solutions Software GmbH
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