EPROM replacement and other helpful hints, was Re: IMSAI EPROMS

From: Louis Schulman <louiss_at_gate.net>
Date: Sat Jun 9 19:34:53 2001

On Sat, 9 Jun 2001 23:05:59 +0100 (BST), Tony Duell wrote:

#>
#> Tony Duell wrote:
#> >
#> > 2764s are available everywhere and are cheap. And _every_ modern
#> > programmer can handle them (I've seen a few programmers that can
#> > handle nothing smaller than the 2764).
#>
#> Heh heh. Don't we all collect classic programmers as well?
#
#Well, _I_ certainly do, but then I'm not the person who can't program
#2708s :-). I think at least one my programmers can manage those, and
#maybe even the 2704 (512*8, otherwise similar to the 2708).
#
#However, even though I can program them, blank 2708s are getting hard
to
#find over here, so it's nice to have a way to use easy-to-get cheap
parts.
#
#-tony

Tony's suggestion that older eproms can be replaced by a 2764 on a
daughterboard is certainly helpful information, like many of Tony's
suggestions.

While I am sure the circuit is "trivial", some of us are electronics
novices, and no circuit is trivial. If I might suggest, it would be
extremely helpful if Tony's hints, and those of others, could be posted
to a web site in the form of schematics or diagrams. For those of us
who are electronically impaired, that would be a tremendous asset.

Thanks,

Louis
Received on Sat Jun 09 2001 - 19:34:53 BST