[sdiy] Thinking out loud....

[ASSI]

On Samstag 10 November 2007, Travis Shire wrote:
> I have this Juno 106 with the filter/vca chips dropping like flies.
> I've already replaced 2 and refuse to stick more cash into this
> thing.

Get your replacements from
http://www.analoguerenaissance.com/D80017/
instead of the much more expensive originals which are bound to fail 
sooner or later as well.  Sell the ones that are still working.  But if 
your Juno eats filter chips, it may just as well have a power supply 
problem that should be fixed before doing any replacements.

Mind his "stupid questions fee", explained at the bottom of the page...

> Now I have some CEM3394s around that I was saving for a 
> project that I never got to. How feasable would it be to cobble in
> the CEMs disabling the osc and going in through the EXT input for
> access to the filter/vca? I don't remember poking around for min/max
> ctrl voltages in the Juno so for now its just a thought......and then
> theres the 6.5v rail to deal with as well.

While I think it can be done, both the electrical and mechanical aspects 
would probably be more effort than it's worth.  If you want to change 
the character of the filters, I'd rather try to fit in an NJM2069 
(KORG) or some such.


Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk]>+

Waldorf MIDI Implementation & additional documentation:
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