[sebhc] list archive and a specific question

[Jack Rubin]

Lee,
 
Docs for the H37 and H47 controllers are in the archive. The H37 docs are incomplete and look like proofs - the handwritten notation looks like Pat Swayne's handwriting, so maybe he'll chime in ...
 
Jack

Lee Hart <leeahart at earthlink.net> wrote:
Barry Watzman wrote:
> 
> There was an H8 disk controller (H17 type) on E-Bay, the auction ended last
> night (Tues. night).

I also have an H8 with no disk controller. The board I'd like to find
for it is the H37/H47 controller. I'm even willing to build one myself
if I can find enough documentation.

I have built H37 controllers for the H89. In fact, I'm trying to do so
now. I have PC boards, almost all the parts, and have one almost
finished. If I can only find a source of Western Digital WD2143M-03 and
WD1691PE chips I should be in business.

The H8 board, being larger, may not have used these rare chips. There
are alternate circuits, but they take more PC board space. Does anyone
have a schematic and layout for the H8 H37 board?
-- 
If you would not be forgotten
When your body's dead and rotten
Then write of great deeds worth the reading
Or do the great deeds worth repeating
-- Ben Franklin, Poor Richard's Almanac
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net

--
Delivered by the SEBHC Mailing List
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sebhcMaillist.heathkit.garlanger.com/sebhc/attachments/20050706/ffd43b8b/attachment.htm>