[sdiy] Thank you all (SRAMs, PS3200)

[jhaible at debitel.net]

Thanks to all for the overwhelming response to my 5101
question !

I got a whealth of informations no, and offers ranging from
free 5101 chips to participating on a similar PIC-based project.

Today I got mail from Korg, and I saw that 
 the PS-3200 also uses a latch after the 5101's
(though I don't know why). So in the end a 6116 would
even be the easier solution (one Memory chip and one
tristate driver, vs. four 5101's), and I will follow this path.
Also, the timing is specified in *milliseconds* (not us or ns),
so even I should be able to get this running. (;->)

So thanks again for all the help. At the moment, I feel
the problem is "settled", so I can put it aside until
I've finished the analog part in a few months.

For those who are interested in the progress of
the Polykorg Project:

* I have two SG (VCO) boards at GS-Electronik for
  etching and drilling now.

* I'm working on the VCO control board right
  now, on veroboard. 

I will keep this pattern: PCB layout for the "multiple"
stuff (24 VCOs, 24 Dividers, 49 ADSRs, 49, VCFs, 49 VCAs),
but veroboard for the single quantity stuff. That's because
the PCB factory takes 3 weeks for one order.
So if anybody would be interested to build a Polykorg
Clone as well, I can provide PCB layout only for the
"multiple" stuff. But I will share the (quite modernized)
schemos for th eother parts as well.

* I got a set of schemos from Korg, even though I bluntly
  told them I was going to clone the whole thing. At first
  I got a slightly amused response "you will run into trouble
  as soon as you need the obsolete divider chips", but when
  I replied "I solved *that* problem already" there was
  a moment of silence at the phone. Afterwards I was
  anxious if I would really get the schemos. I got them,
  and I'm glad I didn't make anything up. I just can't lie
  to people who are helping me. 8-)

JH.