[sebhc] list archive and a specific question

Jack Rubin jack.rubin at ameritech.net
Wed Jul 6 12:52:27 CDT 2005

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 ...

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

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