[sdiy] patch matrix

[ian]

Ah well, you got me. The 4416 has been replaced. My collaborator on the
project, Jim, made the discovery that you can use a CD4016 to replace it.
The only catch is that you have to invert pins 5&6 (controls B&C). Once
you do this, it is exactly the same - pinout and all.
Ian


On Sun, 23 Jun 2002, Ken Stone wrote:

> How did you go finding the 4416 chips?
>
> I also have a couple of partially assembled oscillator boards, and a couple
> of other unstuffed boards left over from my original 3800.
>
> Ken
>
> At 07:24 PM 6/21/02 +0100, ian wrote:
> >Hi all,
> >Thanks very much for the replies - been very helpful.
> >I'm actually fairly comitted to building this thing. I've found sources
> >for all the old parts (except for the matrix!), and am in collaboration
> >with an overseas friend who used to own one and is now building another.
> >So, allthough it might not be wise, I'm going to do it! It's a project
> >ripe for modding! I have a lot of plans for that already...
> >I'll let you know how it goes.
> >Ian
> >
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone   sasami at hotkey.net.au
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>