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Jeff Tranter
, …
Joseph Travis
3
Jan 26
Report from VCF Montreal
Thank you Jeff! I'm glad you were able to attend the inaugural event. I would have like to go as
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Report from VCF Montreal
Thank you Jeff! I'm glad you were able to attend the inaugural event. I would have like to go as
Jan 26
glenn.f...@gmail.com
, …
Rob Foster
22
Jan 26
My H11 lives!
Nice, I gave up trying to find an H11 and bought the next best thing, a PDP-11/03 which from my
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My H11 lives!
Nice, I gave up trying to find an H11 and bought the next best thing, a PDP-11/03 which from my
Jan 26
Rob Foster
, …
norberto.collado koyado.com
11
Jan 25
New H8 owner checking
Perhaps, they are images for the Z37 controller. Get Outlook for iOS From: se...@googlegroups.com
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New H8 owner checking
Perhaps, they are images for the Z37 controller. Get Outlook for iOS From: se...@googlegroups.com
Jan 25
norberto.collado koyado.com
, …
Dave McGuire
6
Jan 24
Z-89-11 Heath Board.
Thanks, Dave, for your help to get all this information scanned. Norberto From: sebhc@googlegroups.
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Z-89-11 Heath Board.
Thanks, Dave, for your help to get all this information scanned. Norberto From: sebhc@googlegroups.
Jan 24
norberto.collado koyado.com
Jan 21
Thanks all for your contributions to the development of new boards!
All, I just want to thank all the team members that have donated money via PayPal to support my
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Thanks all for your contributions to the development of new boards!
All, I just want to thank all the team members that have donated money via PayPal to support my
Jan 21
Paul Cushing
,
Les Bird
3
Jan 11
H19 Emulator V2.50
Les, is there any documentation for this emulator, specificaly the H89 simulator? Thank You Paul
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H19 Emulator V2.50
Les, is there any documentation for this emulator, specificaly the H89 simulator? Thank You Paul
Jan 11
Joseph Travis
, …
norberto.collado koyado.com
28
Jan 9
H8 Memory Test Procedure...
No, it is not on the website. I started with the H89 schematics using the H8 board format because it
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H8 Memory Test Procedure...
No, it is not on the website. I started with the H89 schematics using the H8 board format because it
Jan 9
Joseph Travis
, …
glenn.f...@gmail.com
7
Jan 9
Rabbit holes and thread hijacking...
So the SEBHC google group grew out of the earlier SEBHC list which started almost 19 years ago. Mark
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Rabbit holes and thread hijacking...
So the SEBHC google group grew out of the earlier SEBHC list which started almost 19 years ago. Mark
Jan 9
B 9
, …
glenn.f...@gmail.com
9
Jan 8
Possible bug in H89LDR2.ASM NOP sled
You certainly have had a good “education” looking at this code (and the Forth companion piece).
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Possible bug in H89LDR2.ASM NOP sled
You certainly have had a good “education” looking at this code (and the Forth companion piece).
Jan 8
G. Beat
12/31/25
2026 VCF Midwest
Are We Doing This Again? Hello Vintage Computer Lovers, We most certainly are doing VCF Midwest again
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2026 VCF Midwest
Are We Doing This Again? Hello Vintage Computer Lovers, We most certainly are doing VCF Midwest again
12/31/25
B 9
, …
Mark Garlanger
9
12/23/25
Heath-style cross assembler
Github shows it's been about 10 years since I created the repo, but it wasn't forked, Bruce
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Heath-style cross assembler
Github shows it's been about 10 years since I created the repo, but it wasn't forked, Bruce
12/23/25
Joseph Travis
,
norberto.collado koyado.com
3
12/20/25
Fwd: 80UN unpack, decompress any CP/M archive/compression
Using any of the old programs (SQ, ARC, LU, PACK, etc.) from back in the day. This program was
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Fwd: 80UN unpack, decompress any CP/M archive/compression
Using any of the old programs (SQ, ARC, LU, PACK, etc.) from back in the day. This program was
12/20/25
Jeff Tranter
, …
Adrian Stoness
5
12/20/25
VCF Montreal
i want to attend but its a 12hr drive just to an airport sigh On Fri, Dec 19, 2025 at 7:06 PM Jeff
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VCF Montreal
i want to attend but its a 12hr drive just to an airport sigh On Fri, Dec 19, 2025 at 7:06 PM Jeff
12/20/25
glenn.f...@gmail.com
12/20/25
FW: [vcf-midatlantic] VCF 2.0 from 1998
This was fun (watch for the H11/H10/H8 in the background 😊 ) -----Original Message----- From: vcf-
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FW: [vcf-midatlantic] VCF 2.0 from 1998
This was fun (watch for the H11/H10/H8 in the background 😊 ) -----Original Message----- From: vcf-
12/20/25
B 9
, …
glenn.f...@gmail.com
9
12/15/25
Procedure for testing a disk drive that gives "?Boot Error"
The silver oxide is conductive but not as conductive as the original silver plating. Fortunately it
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Procedure for testing a disk drive that gives "?Boot Error"
The silver oxide is conductive but not as conductive as the original silver plating. Fortunately it
12/15/25
norberto.collado koyado.com
, …
Steven Feinsmith
4
12/15/25
H89-FUJINET PROJECT LOADED ONTO WEBSITE.
Wow, that is one to be useful for, the H80 series. Get Outlook for iOS From: se...@googlegroups.com
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H89-FUJINET PROJECT LOADED ONTO WEBSITE.
Wow, that is one to be useful for, the H80 series. Get Outlook for iOS From: se...@googlegroups.com
12/15/25
Darrell Pelan
, …
Mark Garlanger
4
12/14/25
Disk Image Utility update
Hey Darrell, This wasn't you, it's related to someone's earthlink email account doing
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Disk Image Utility update
Hey Darrell, This wasn't you, it's related to someone's earthlink email account doing
12/14/25
Dave McGuire
, …
glenn.f...@gmail.com
17
12/7/25
Super19 upgrade problems
Oops I mean 2532 … From: Glenn Roberts <glenn.f...@gmail.com> Sent: Sunday, December 7,
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Super19 upgrade problems
Oops I mean 2532 … From: Glenn Roberts <glenn.f...@gmail.com> Sent: Sunday, December 7,
12/7/25
norberto.collado koyado.com
,
glenn.f...@gmail.com
4
11/28/25
H89-Z37 New Website + future H89//S89/H8 boards.
Added additional links at: https://koyado.com/heathkit/New-H8-Website/h8-h89-pcb-s.html I still need
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H89-Z37 New Website + future H89//S89/H8 boards.
Added additional links at: https://koyado.com/heathkit/New-H8-Website/h8-h89-pcb-s.html I still need
11/28/25
Mike Cassidy
, …
norberto.collado koyado.com
27
11/21/25
Exploring H89-Z37 (Norberto's board)
Thanks Mark and a great monitor! Norberto From: se...@googlegroups.com <se...@googlegroups.com>
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Exploring H89-Z37 (Norberto's board)
Thanks Mark and a great monitor! Norberto From: se...@googlegroups.com <se...@googlegroups.com>
11/21/25
B 9
,
Glenn Roberts
2
11/13/25
Heath-people archives
Well this Google group list is all still on line and searchable https://groups.google.com/g/sebhc
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Heath-people archives
Well this Google group list is all still on line and searchable https://groups.google.com/g/sebhc
11/13/25
dave...@gmail.com
, …
norberto.collado koyado.com
8
11/10/25
Lot of 10 WDC'82,WD2797PL-02 From EBAY
The new WD2797 works fine on the Heath H89-H37 Board . Same pins except for a few ones for circuit
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Lot of 10 WDC'82,WD2797PL-02 From EBAY
The new WD2797 works fine on the Heath H89-H37 Board . Same pins except for a few ones for circuit
11/10/25
B 9
, …
Mark Garlanger
12
11/9/25
Drive repair tutorial?
On Fri, Nov 7, 2025 at 4:11 PM B 9 <hack...@gmail.com> wrote: The HDOS disk is probably fine.
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Drive repair tutorial?
On Fri, Nov 7, 2025 at 4:11 PM B 9 <hack...@gmail.com> wrote: The HDOS disk is probably fine.
11/9/25
B 9
, …
Darrell Pelan
22
11/6/25
New to Z-89A, chickens & eggs
DIU is focused on disk image management and does not include the H89 emulator in the H8D utility. It
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New to Z-89A, chickens & eggs
DIU is focused on disk image management and does not include the H89 emulator in the H8D utility. It
11/6/25
G. Beat
, …
dave...@gmail.com
6
11/4/25
New Cherry MX Keyboard Switches
Sure, not hurry, but wow, those are cool keyboards. From: se...@googlegroups.com <sebhc@
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New Cherry MX Keyboard Switches
Sure, not hurry, but wow, those are cool keyboards. From: se...@googlegroups.com <sebhc@
11/4/25
Lee Hart
,
Joseph Travis
2
11/1/25
Happy Halloween!
I love it Lee! A great parody and story! Each Halloween I wonder what new ideas you come up with. I
unread,
Happy Halloween!
I love it Lee! A great parody and story! Each Halloween I wonder what new ideas you come up with. I
11/1/25
Daveyk021
, …
norberto.collado koyado.com
19
10/30/25
Dumb Question on 5.25" Drives
I hope they do work to order some spares. Get Outlook for iOS From: se...@googlegroups.com <sebhc@
unread,
Dumb Question on 5.25" Drives
I hope they do work to order some spares. Get Outlook for iOS From: se...@googlegroups.com <sebhc@
10/30/25
glenn.f...@gmail.com
10/29/25
book for newbies
Since we have some new members who have little familiarity with Heath computers, I thought I'd
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book for newbies
Since we have some new members who have little familiarity with Heath computers, I thought I'd
10/29/25
Glenn Roberts
, …
Paul Cushing
35
10/27/25
Swap meet
One shorted transistor and one blown transistor in the 53V regulator circuit. i removed all four to
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Swap meet
One shorted transistor and one blown transistor in the 53V regulator circuit. i removed all four to
10/27/25
Glenn Roberts
, …
Mark Garlanger
3
10/18/25
Wacky mail
I see it too, but not sure what is causing the issue 🤔 On Sat, Oct 18, 2025 at 6:30 PM Joseph Travis
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Wacky mail
I see it too, but not sure what is causing the issue 🤔 On Sat, Oct 18, 2025 at 6:30 PM Joseph Travis
10/18/25