22 Aug
1997
22 Aug
'97
2:07 p.m.
On Fri, 22 Aug 1997, Allison J Parent wrote:
< I didn't hear from you before so can you
let me know if there is going
<be any need for HHC eproms? I am sitting on approx. 5000 of them which I ha
<received a salvage offer of $1.25/lb for and I'm probably going to take,but
At that price I'll consider a few pounds+ shipping. Di I contact him
direct? Is he willing for say do a two pound package for say $5 +shipping?
to multiple respondents or would he like to see 10 pound blocks? I'd be
willing to do say 10# if I had others willing to pay say 10-15% over my cost
for packing materials for smaller distributions. This intent is that I'd
want to recoup my cost.
I should've posted his e-mail address for replies. Sorry.
He's at Mikeooo1(a)aol.com. Talk to him directly about working out a bulk
deal. I'm sure he'd be happy to work something out. I have no
involvment in the deal. Thanks!
Sam
-------------------------------------------------------------------------------
Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass
4 Sep
4 Sep
5:40 p.m.
New subject: [Long] HHC Eprom Update!
Otay, folks. Sorry for the lack of verbiage here, but I've had a crazy
week+. Here's the skinny:
Me wifey just called from home and said that the e-proms have arrived.
There's 3 packages of them, totalling roughly 110 pounds of the things.
They are 8Kx8 parts, made by Motorola with part numbers MCM 68764 and
MCM 68766.
If y'all don't recognize these part numbers, I'm _almost_ positive that
they are 24-pin chips compatible with Mask-programmed ROMS of similar
numbers and should be pin-compatible with those. For all you CoCo lovers,
this means you. Most (if not all) of the Tandy CoCo 1 & 2's and CoCo disk
controllers (up to and including the FD-501, if I'm not mistaken) used
these for Color Basic, Extended Color Basic and Disk Extended Color Basic.
Now all you Cocoists (this includes me... I'm jumping for joy) can upgrade
& burn new Basic ROMS to fix a lot of the bugs that Microsoft left in,
without having to hack up a 24-pin to 28-pin adapter. (which, BTW, I do
have the specs for so you could hack one up if necessary.)
These are supposed to be blank, but Mike said that if some came thru with
programming intact, they would contain specialized insurance-type programs
for the HHC's. The HHC's were built under the Panasonic and Quasar labels
(from what I gathered on the Web) and utilized a 6502 uprocessor, IIRC.
I'll drum up the web references again, when I get home.... uh, no... links
are here. Here's what I got:
===============================================
10:26 p.m.
New subject: [Long] HHC Eprom Update!
At 06:40 PM 9/4/97 -0400, I wrote:
Otay, folks. Sorry for the lack of verbiage here, but
I've had a crazy
week+. Here's the skinny:
Yes, I'm quoting myself... Around my house, it's the only way I'm assured a
halfway intellegent conversation..... ;^>
They are 8Kx8 parts, made by Motorola with part numbers
MCM 68764 and
MCM 68766.
Yes, and I forgot to mention that they are CMOS parts, as well. The look to
be standard, _except_
they are all inserted into a special carrier-like thingamabob that made it
easy to insert/remove the ROM packages and has a .1 or .01 microFarad
capacitor soldered betwen Vcc and ground on each chip... I guess that's why
they're heavier than normal.
Uh, and did I mention that there's _-_-Lots-_-_ of them!?!?!?!?
You could desolder the cap, straighen the pins and remove the plastic
carrier and voila! you have a chip that will directly plug into an e-prom
burner (provided it handles it...) and Bammo! You can upgrade whatever you
want.
Remember I mentioned this URL:
Well, I just fired off an e-mail to the lady that's in command of the
licensing and re-printing of articles in Byte, to see if she'd give
permission to reproduce this article on the Web. I'll wait and see if I get
any response.
Barring that, does anyone out there in ClassicLand have that issue of Byte?
At the very least, you could educate us on just what it had, and maybe scan
in a picture if you have access to a scanner... (or even, if someone has an
extra issue of that one, I'd be willing to trade something for it).
Anyway, the closest I have in my collection is March 1981, so that won't
quite do.
Anyway, more on this when I get home (still at work...)
and if anyone else
is interested, put yer orders in!
Just a reminder to anyone who wants some... they're cheap!
Thanks,
Roger "Merch" Merchberger
--
Roger Merchberger | If at first you don't succeed,
Programmer, NorthernWay | nuclear warhead disarmament should *not*
zmerch(a)northernway.net | be your first career choice.
5 Sep
5 Sep
2:42 a.m.
New subject: [Long] HHC Eprom Update!
At 11:26 PM 9/4/97 -0400, Roger Merchberger wrote:
Barring that, does anyone out there in ClassicLand have
that issue of Byte?
At the very least, you could educate us on just what it had, and maybe scan
in a picture if you have access to a scanner... (or even, if someone has an
extra issue of that one, I'd be willing to trade something for it).
I'll admit to having it at home. I assume you're talking about the January
1981 issue? I'll write a note to myself and bring it in tomorrow (yes,
Saturday) and scan it in...
Huw Davies | e-mail: Huw.Davies(a)latrobe.edu.au
Information Technology Services | Phone: +61 3 9479 1550 Fax: +61 3 9479
1999
La Trobe University | "My Alfas keep me poor in a monetary
Melbourne Australia 3083 | sense, but rich in so many other ways"
9978
days inactive
9992
days old
3 comments
3 participants
participants (3)
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dastar＠crl.com -
H.Davies＠latrobe.edu.au -
zmerch＠northernway.net