Unexpected DIY project
The Old Crow
oldcrow at oldcrows.net
Tue Oct 3 00:00:12 CEST 2000
On Mon, 2 Oct 2000, patchell wrote:
> It is already pretty perverted. I used to sell a memory/io expander.
> It also has another board I did that has a 2716 eprom on it. When I made
> that board, the 2716 was a pretty big deal.
I probably have the only functional 1702A programmer left on the earth.
60-volt programming pulses, heh heh. I remember the 2716 board, but never
got one. My 8700 probably still works; it has been sitting on a shelf
(along with the rest of my P4700J) in my office for the past 3 years.
> Actually, if you want any of the old memory/io expander boards, I still
> have a few blank ones. It uses a pair of 2114's and a pair of 6522 VIA's,
> and some misc TTL stuff. I would have to look in my junk box to see if I
> have any of the old PROM boards, or, for that matter, the 2716 burner card
> (I used to use the 8700 as a prom programmer as well).
If you're offering to the list, I'll take one of each that is available.
Before I had the 8700 working, I used a Netronics ELF-II to operate the
8780/1 and programmed it to be a sequencer, duophonic key assigner, etc.
Those were the days...
Crow
p.s. that ELF-II sits beside the P400j at the office, heh heh
/**/
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