[sdiy] Diode bridge

[harry bissell]

Nah... you want the diodes in the ring to be well matched.  If they are 
not you
will get CV bleedthrough.

Hmmm... there are FIVE transistors in the CA3046 that should be well 
matched, at least
for forward drop.  You would need FOUR for a diode bridge. One of them 
could be
"buried" to isolate it from the circuit...

Now  (grad school questions, kids :^)....

How can you use the 3046 as four diodes ???

Which transistor should be 'buried', and why ???

How can you "bury" that transistor ???

You can study the data sheets, or any Moog style ladder filters. The is 
ONE odd
transistor... what makes it odd.

and STFU, synth-diy members (unless you reply off-line) you should all 
know this....

H^) harry


Aaron Lanterman wrote:
>
> Fahl - thanks for the suggestion! I had forgotten about that.
>
> Chris, Aaron, Basil - the Korg MS50 is an interesting alternate 
> control circuit if you can't get Paul S's control circuit working.  I 
> don't understand how it works any more than I understand Paul's, but 
> it's something else to try.
>
> Remember you don't need C11 and C12 (in the Korg diagram) for what 
> you're doing.
>
> You could just use discrete diodes in place of the CA3019 array.
>
> http://machines.hyperreal.org/manufacturers/Korg/MS-synths/schematics/ms50filt.gif 
>
>
> - Aaron
>
>