Looking for CEM 5530 or equivalent circuit

[Richard Rasker]

Hi all,
I'm stuck with a Keytek CTS-2000 synth with a broken
CEM 5530 (30 sample & hold-amplifiers, DIL 40).
The decive is not available through the regular 
channels like OnChip technologies (who manufactured
it) or other distributors.
Is there anyone out there who still has one of
these lying around, or has a (not too expensive)
suggestion for a replacement circuit?

(The only multiple sample & hold I can find is the
SSM 2300 - but even these seem to be hard (& expensive)
to come by, and I'd need 4 of these with some 
extra decoding circuitry. Therefore, I don't 
think that this is a good solution.)


Any suggestion is welcome,

Regards,

Richard Rasker

r.e.rasker at student.utwente.nl