Heath - Zenith computers, docs, items for sale

This Web page last updated Aug 7 2012.

This Web page is specific to Heath-Zenith computer items I have for sale. See my Heath - Zenith general Web page for more information about Heath-Zenith computers of the 1970's and 80's. Ordering information and how to email @ me can be found in this notice.

On this Web page:

On other Web pages:


Heath Zenith Z-100 computers

[Zenith Z110 system]

[Zenith Z120 system]

This part of my Web page, has items for HeathKit and Heath. Another Web page has a description of Heath / Zenith" Z-100 S-100 based computers. The Z-110 model pictured on the left is generally called the low profile model, without an internal CRT monitor; the Z-120 or "all-in-one" model shown on the right had a internal monochrome CRT monitor (which many updated to color). These models have a six-slot S-100 backplane on their 8085 and 8088 CPU motherboard. (Zenith sold later models in the Z-100 series which were much like IBM PC's; I don't "cover" those models.)

H-100 systems wanted, for sale - PLEASE READ BELOW BEFORE YOU CONTACT ME

We are always looking for selected Z-110 and Z-120 items at very modest prices, for other people interested in these systems. If you wish to offer something, please provide your city/state/zip, tell me what you have, if you will ship, what you want for it, and when you must "move" it. But over the last few years, I usually get "I have a bunch of stuff, I have to move it, can you help?" and I have to ask these same questions again - so save us both some time. But if you are a thousand miles away and only have a week, there's not much I can do. Maybe I can refer you to someone else, that's about it.

I don't pay much, because I have plenty, and they don't sell for much. I may want selected parts, even if you have to discard the rest and can't ship, so ask me accordingly. Thank you.

Z-100 systems software disk manual package

I have had requests from "new" Z-100 owners for operating information and "boot disks" or operating systems. Consequently I've put together this Z-100 systems disk package: several disks and photocopied manual exerpts. This includes the following ten 5.25-inch 360K diskettes:

...and about 100 pages of exerpts from Zenith manuals.

10 diskettes, 100 pages of manual extracts - $49 plus shipping

The manuals exerpts are from:

Z-100 Hardware: parts and systems for sale

In 2010 I've tested a few "low profile" Z-100 systems I can sell. These have either 768K of memory or 192K of memory, a floppy controller, and 32K or 64K of video memory. In general these will be tested and working when shipped. They WILL, repeat WILL, require mechanical work on cases and front plates. They will NOT have floppy drives except at some extra cost.

This is not a mint system offered on a silver platter. What you are getting is a functional Z-100 that you can work on. Minimum shipping weight is about 50 lbs. We will not ship the "all in one" systems with internal CRT monitor, they are too heavy and too easily damaged. Ask about price with shipping - but anything below $100 each plus shipping will be very hard for me to accept, for the effort and fuss it takes, for the value of the parts, etc. We'll consider selling the motherboards only as tested and working; price will be at least $59, and based on whether they are 192K or 768K, more for more memory. We'll sell other parts too if we can.

[Zenith Z100 buscard]
Z-100 motherboards 85-2653-1, 192K RAM-type, AS-IS FOR PARTS condition
Z-100 motherboards 85-2806-1, 768K RAM-type, AS-IS FOR PARTS condition
Some worked, some did not, some may be modified. Prices will depend on condition and completeness.
Minimum price for untested, reasonably complete no RAM no CPUs is $29 plus extra packing costs and shipping.
No returns on any of these motherboards, you are getting them for parts and for repair.

Other Heath Zenith Z-100 cards: prices do not include shipping or additional testing, ask about testing costs. These boards were tested several years ago unless noted otherwise.
Heath/Zenith model 256K DRAM cards, 85-2898-1, labled 181-3917. 64K DRAMS 200ns, $49. with manual.
Macrotech 256K memory cards, Z-100 tested, $49.
Zenith floppy disk controller card, Z-100 tested, $59.
Zenith video card (mounts on motherboard), Z-100 testedm $39, w/64K or 32K RAM.
Zenith 4-port serial cards, with at least one serial cables, manual: untested. $49 plus shipping.

Winchester (hard disk drive) card sets are sometimes available. If you have a set I'd be interested in them. .

Zenith Z207-41 8-inch floppy drive enclosures and 8-inch drives are mentioned in the drives section of my WEb page. The 30 page manual is available as a copy from me, ask for details.

The Z-100 series had two models of power supplies. Zenith docs list some of them as follows, but Zenith has many other part numbers for these power supplies. ALso, the "Winchester drive" model has a P6 connector for the drive controller.

Low profile model- 234-200
Low profile model with Winchester drive- 234-257
All-in-one model- 234-201
All-in-one model with Winchester drive- 234-256

I have a few of these pulled from working systems. I think the low profle model with P6 connector is rectangular shaped and has the Zenith number ZDS-234-432. The "all in one" model with the CRT had a power supply shaped like a small box with a wedge-shaped top, number ZDS-234-433. I'd sell a good used one for $49 plus shipping, shipping weight 10 lbs. Let me know if you must have the P6 connector for a Zenith Winchester controller.

Manuals for hardware are listed with the Heath manual sets Web page.

H-89 systems, docs for sale

I'm very fond of these H89 systems, I used these some years ago and worked with a developer and manufacturer of H89 cards. I have a few of these systems, but haven't had time to do much with them. But in a weekend in 2009, I did some repairs to a few H-89 systems.

Manuals for H89 hardware and software are listed on myH89 section of my Heath manual sets Web page.

H-8 systems, docs for sale

Thanks to the generousity of a Boston area H-8 owner, I acquired an H-8 in 2005. Follow this link for details. Also check the SEBHC group in my Heath-Zenith "sites" section, they support old and new versions of the H8.

Manuals for H8 hardware and software are listed on myH8 section of my Heath manual sets Web page.

Z-141, Z-151, Z-148 systems, docs for sale

These are Zenith's early PC compatible systems, that are not S-100 like the Z-100. These are not of great interest to me. But in In 2011 I acquired two Z-150 MS-DOS systems. Here's a Web page with a brief look at those Z-150's. YOu can ask me if I want to sell them.

Manuals for Zenith PC-related hardware and software are listed on my Heath manual and disks Web page.

Herb Johnson
New Jersey, USA
follow this link to email @ me

Copyright © 2012 Herb Johnson