Heathkit Fall 1978 catalog now on-line; H-8, H-11, H-9 and ET-3400.

From: Ethan Dicks <ethan_dicks_at_yahoo.com>
Date: Fri Dec 8 11:09:19 2000

--- Joe <rigdonj_at_intellistar.net> wrote:
> Hi,
> I just finished scanning all of the computer related pages from my Fall
> 1978 Heathkit catalag and posting them on the web...

Thank you for these. I have been (slowly) restoring an H-11 I recovered
from the crawlspace of a former boss. We did custom DEC work about 12-14
years ago on his H-11 (KDF-11) and my 11/23 (the target system was an 11/73
w/4Mb RAM, Fuji Eagle, the works, running TSX-11 - I loved the fact that I
could develop on a system I paid $300 for and deliver code to a machine that
cost >$10K).

I'm still on the lookout for the schematics for the Heathkit floppy interface.
Mine siezes the bus such that on power-on, I never get an ODT prompt. If I
put a gap in the Qbus, I can run the CPU, see the I/O registers on the floppy
card, etc., but, of course, it doesn't boot up fully - it seems to read in
the boot block, but as soon as RT-11 turns up interrupts, because of the
break in the grant chain, they, of course, never come. I really just need
to know what chips have their fingers in the interrupt handling and to probably
just replace them. My board is socketed and I have checked all the TTL chips
with an IC tester. I'm down to the Heath/DEC bus driver/receiver parts.



Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd_at_iname.com

The original webpage address is still going away. The
permanent home is: http://penguincentral.com/

See http://ohio.voyager.net/ for details.

Do You Yahoo!?
Yahoo! Shopping - Thousands of Stores. Millions of Products.
Received on Fri Dec 08 2000 - 11:09:19 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:32:48 BST