![[Zenith Z100 system]](z100x.jpg)
This Web page last updated date June 24 2008.
![[Zenith Z100 buscard]](z100bdx.jpg)
This Web page has some info about and items for HeathKit and Heath - Zenith Z-100 series computers, which were built and sold in the 1980's. 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 had a internal monochrome CRT monitor (which many updated to color). Brief specifications of the Z-100 series is: a S-100 or IEEE-696 standard motherboard backplane but with on-board dual processor (8088 and 8085) and memory (256K or 768Kbytes), and "daughterboard" video (32K or 64K of RGB color or monochrome). S-100 cards from Heath included a floppy disk controller, additional memory, a hard drive controller, 4-port serial card. Many other S-100 companies offered add on cards. These systems were bought by the US military for training, and a number of universities bought them or required them for students. These are very reliable and rugged systems; many are still in use to this day (2003), and some still appear at military surplus auctions. A Zenith external 8-inch floppy drive system in pictured in my disk drive section
This page is pretty busy: I have here the following:
Ordering information and how to email @ me can be found in this notice.
Moved to another page with details on the Z-100 system and its history.
We are always looking for selected Z-110 and Z-120
items at VERY MODEST PRICES, for other people interested in these systems. That price also
also means COSTS OF SHIPPING if you ship, so I need to know your CITY/STATE/ZIP.
If you want me to PICK UP YOUR STUFF I also need your CITY/STATE/ZIP so I can decide if I
can drive that distance (from central New Jersey). I also need a GENERAL DESCRIPTION and
some CLUE ABOUT SIZE (volume, weight) of what you have. And I need to know WHEN YOU WANT TO MOVE
THE STUFF. ***PLEASE TELL ME THESE THINGS UP FRONT***, it will save time and fuss.
Typically (since say 2005), we obtain these from people who want to see their systems and stuff "go to good
homes" rather than be discarded. Space and budget limit what I can buy or even take for free; our priorities
are to obtain manuals and diskettes, 8-inch drives and cabinets, some S-100 cards. Whole systems
are difficult to ship or to pick up. And I can't just drive across country at a moment's notice.
But we may now of OTHER PEOPLE who want systems who can stop by.
This is my policy for 2006.Contact me if you WANT a system, or contact me if you HAVE a system or parts to offer. But give me ALL THE INFO YOU CAN so I can be clear as to what I can do. However if, as it often happens, you
email me to offer a lot of stuff and then say "I live (somewhere far away) and I have to get rid of my
stuff in a week, come get it", chances are I can't do that. Sorry. Maybe I can refer you to someone else,
that's about it. In 2006 we don't have complete "low profile" Z-100 systems ready for sale.
I don't have time to prepare them currently. These would have either 768K
of memory or 192K of memory, a floppy controller and one 360K floppy drive,
and 32K or 64K of video memory. In general these will be tested and working
when shipped, but some may require mechanical work on cases, floppy drives, etc.
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.
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. Winchester (hard disk drive) card sets are sometimes available, if
you have a set I'd be interested in them. When I have them, they will
include cables and software, but hardware and bracket to mount the
data seperator card and hard drive are offered seperately.
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. The Winchester drive" model has a P6 connector for the drive controller.
Low profile model- 234-200 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-234-431. I'd sell a good used one for $29 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 manual sets
below.
We have originals manuals and disks for sale, on Z-100 and other
Heath/Zenith computers. We may provide copies
of manuals but not copies of some software, ask. Prices will vary with supply
and interest, ask for more info on specific
packages. Page counts are approximate, weights for shipping purposes.
"Half-sized" means manuals are 8.5 inch by 5 inch, otherwise manuals
and binders are for 8.5 by 11-inch pages. Manuals and disks are believed
to be complete and in good condition but are sold AS IS. Copies are generally
priced by the page and are made on commercial quality photocopiers. I have
had few complaints to date on previous sales, but know what you are buying
and ask me if you wish me to check disks for version numbers.
Note: MS-DOS version 1.25 is considered "collectable" and will command
a much higher price from collectors. We will have to determine current value before
offering it. Similar considerations may apply to early versions of other older software.
These are Zenith's early PC compatible systems. Please don't ask me if I want or will buy these systems, they just are not of great interest to me. I only have a few manuals, the manuals are for sale as listed below.
I'm very fond of these 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 I don't have time
these days to do much with them.
Thanks to the generousity of a Boston area H-8 owner, I acquired an H-8 in 2005. I'm desperate for time to set it up and show it off, and to work with it. I'm interested in acquiring additional H8 cards for it. Of course I also want to offer good copies of the H8 manuals I've acquired, some of which are listed below.
The H8 is an interesting machine in many respects. It has an OCTAL display and keyboard, not a binary front panel like other 8080 machines. The motherboard is SIDE mounted, not on the bottom, and uses a pin and socket connector and not an edge connector. (The h89 used similar connectors for their I/O cards.) A shorter-length bus than the S-100 means it can run a little faster, some people have souped up their H8's to several Megahertz.
And there are Z80 and other upgrade cards which were built for this system. But the original used a cassette board and tape storage, like the early H89.
If you have an H8 and a Web site, I'll consider adding a link here to your site. If you have H8 stuff to offer, let me know.
H8 manuals: 2007 acquisition. ask for quote for copies.
595-2014-02 H8 Operation Manual As of 2007, here is what I have in my archives. Let me know if
you are interested in a duplicate issue or a photocopy, or a copy of an
article (but you determine which issues!), I'll set a price accordingly.
As of Sept 2003 an index of Sextant articles
can
be found via this link to the Z-100 Lifeline magazine site. Some
of these magazines are from Col. Williams'
collection; some were donated courtesy of the Langstons. Thank you.
Most of these Heathkit manuals are in good condition, ask for specifics. We'll price
these at $10 each plus shipping; I may negotiate lower for smaller manuals. I'll consider making copies of
these manuals but the copies will still be several dollars each depending on page count.
Note: I may have additional manuals with some instruments, check my
odds and ends page for details.
Many of these manuals and the magazines above
were provided in memory of Col. Robert D. Williams, USAF, by
his wife. Col. Williams built and used many of these Heathkit items. His wife told me
"..if some of these manuals get passed on, people will know that
once there were people who could actually do things with their hands". After years of
working on Heathkits, Col. Williams turned to computer art and created fractal images:
samples of his work can be found on his site.
Note: you may have found this Web page while looking for information
on Heath/Zenith products purchased in year 2002 or later. You should
know that the original "Heath", the old computer and hobby electronic kit company
(which is featured on this Web site) from Benton Harbor MI was liquidated in the mid 1990's. The
"Heath/Zenith" trade mark and name was sold seperately.
One apparently licensed user of the "Heath/Zenith" name markets various
home electronic products. It happens I got something from "Heath/Zenith" in 2002 at Home Depot (a USA national hardware superstore).
The bottom of its packing box says "DESA International, Bowling Green KY 42102,
Manufactured in China". A Web page at http://www.desaint.com/
refers to several product lines including "Heath/Zenith".
In 2008 I was alerted that Duchossois Industries includes the Heath/Zenith name and may have registered "heath-zenith.com". Their site says one of their "portfolio companies" is "heath-zenith" which links to the DESA Customer Care center. Check their sites for more information.
If you want more info about
RECENT Heath Zenith home products, I suggest you check that site, or
read the lables on the box, or contact the store you bought your product from. One of these may refer you to the manufacturer;
or the store may have additional info on the product or the manufacturer. I have
no information on products from Desa International.
Another apparent licenser of the "Heath" name is Heathkit Company Inc.
or Heathkit Educational System, of Benton Harbor MI. All I know about this
company is from the information listed on their Web site at
heathkit.com. Their home page says "preparing
people for success in technology for over 75 years." This company appears to
provide educational trainers and training support for formal learning about
electronics of various sorts. They apparently support some of the old Heath Educational
materials and training manuals. They have links on their "support" Web page
to Desa International (mentioned above), a phone and email for old
Heathkit manual photocopies, and a link to a page of "vintage"
suppliers of parts, repair, and robot resources and other sites.
Robert Doerr bought the Heath "Hero" robot name
and all the leftover parts, and offers support and info
via his Web site.
The Heathkit virtual museum is referenced on the Heath site,
at http://www.heathkit-museum.com/.
That site said they had permission to use the Heathkit name and links back to
"heathkit.com."
There are many Web pages about the "old" Heath and old Heathkits, a Web
search will find them. Most are about the Heath ham radio kits or other kits,
a few are devoted to Heath and/or Zenith computers. If you have any corrections
to the above information I'd appreciate hearing
them: please include appropriate references so I can confirm that info. I am not
responsible for errors or omissions in the above info, use it at your own risk.
Herb Johnson
Copyright © 2008 Herb JohnsonH-100 systems wanted, for sale - PLEASE READ BELOW BEFORE YOU CONTACT ME
Z-100 systems software 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 manual exerpts, for
$29 plus shipping. This includes the following on 360K diskettes:
...and about 80 pages of exerpts from Zenith manuals.
Z-100 Hardware: parts and systems
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 reasonably complete no RAM no CPUs is $25 plus extra packing costs and shipping.
No returns on any of these motherboards, you are getting them for parts and for repair.
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, with Manual.
Zenith floppy disk controller card, $49, with Manual.
Zenith video card (mounts on motherboard), $39, w/64K or 32K RAM.
Zenith 4-port serial cards, with at least two serial cables, manual: untested. $35 plus shipping.
Low profile model with Winchester drive- 234-257
All-in-one model- 234-201
All-in-one model with Winchester drive- 234-256
Heath/Zenith: ORIGINAL disks and manuals
Heath/Zenith software manuals & disk sets
Stock re-inventoried Dec 2004:
shelved, full-sized binders:
---------------------------
Heath/Zenith, MS-DOS / Z-DOS three full size manuals in binders with disks (1st set)
Vol 1 595-2827-02, Vol 2 595-2835-03
Winchester supplement 595-2854-02
MS-DOS Version 1.25 release 1.01, assembler, linker, more!
2 diskettes plus update, OS-63-4
Heath/Zenith, MS-DOS / Z-DOS three full size manuals in binders with disks (2nd set)
Vol 1 595-2827-02, Vol 2 595-2835-03
Winchester supplement 595-2854-02 (in 3rd binder not Zenith)
MS-DOS Version 1.25 release 1.01, assembler, linker, more!
2 diskettes plus update, OS-63-4
Drawer:
------
Zenith Heath MS-DOS ver 2, Z-100 series
half-sized manual in binder, Vol 1, 2.
MS-DOS quick reference booklet
2 original disks OS-61-8 in envelope, registration card; all have same serial number
Zenith Heath MS-DOS ver 2, Programmers Utility Pack, Z-100 & Z-100PC
half-sized manual in binder, Vol 1, 2.
with original disk CB-5063-16
also quick reference booklet
Zenith Heath MS-DOS ver 2, Programmers Utility Pack, Z-100 & Z-100PC (second set)
half-sized manual in binder, Vol 1, 2.
with original disk CB-5063-16
no quick reference booklet
MS-DOS Version 3 Programmer's Utility Pack, 2 volumes, half-sized, 595-3764
MS-DOS Version 3 Conversational MS-DOS, half sized, 595-3485-03
MS-DOS version 3 for Z-100 series, half sized in box,
manual 595-3494-01, Quick Reference Guide, 2 disks OS-63-30
MS-DOS version 3, half sized in box,
manual 595-3477-01, Quick Reference Guide,
envelope for disks OS-63-31 (no disks)
Microsoft GW Basic Ver. 2.0 for Z-100 and Z100 PC, half sized in box,
manual 595-3327, disk MS-5163-13 in envelope w/matching serial number
Microsoft Windows manuals: appear to be of a set:
Quick Ref Guide, probably V2.0 or 386, manual 597-4847-02
Windows 2.0 User's guide, 595-4168-01
Windows Desktop Appl Write/Paint USer Guide, V2.0 or 386, manual 595-4040-03
Microsoft Windows manuals: appear to be of a set
Windows 2.0 User's guide, 595-3661 (2 copies)
Windows 2.0 Desktop Applic. Users guide, 595-3662 (2 copies)
Windows User's Guide and Desktop Applications User's Guide (one manual)
595-3586
Microsoft MS-DOS V3.0, half height (first set, in original Zenith shipping box)
Vol I Basic concepts, manual 595-3705-01
Vol II Primary Command manual 595-3706-02 (may be lost)
Vol III Program Devel. Winchester manual 595-3707-01, 2 disks OS-63-31
in two Zenith boxes
Microsoft MS-DOS V3.0, half height (second set)
Vol I Basic concepts, manual 595-3705-01
Vol II Primary Command manual 595-3706-02 (may be lost)
Vol III Program Devel. Winchester manual 595-3707-01, 2 disks OS-63-31
in two Zenith boxes
Microsoft MS-DOS V3.0, half height (partial in one Zenith box)
Vol III Program Devel. Winchester manual 595-3707-01, 2 disks OS-63-31
Microsoft GW Basic Ver. 2.0
manual 595-3161-07, EGA support manual 595-3695-02, quick reference
above drawer:
------------
MS-DOS 3.21 for Z-150, Z-170, half-sized;
manual 595-3980, quick reference;
2 disks OS-64-61 in envelope w/matching serial number
MS-DOS 3.21 for Z-150, Z-170, half-sized with 2 disks
(2nd set as above except no quick reference)
Z-100 PC (Z-150) Operating Manual, half-sized in gox 595-3157-01
GW-BASIC 3.2 Interpreter and compiler manual, User Guide,
Quick Reference, User's reference, diskette
GW-BASIC 3.2 Interpreter and compiler manual, User Guide,
Quick Reference, User's reference, diskette (2nd set)
box:
----
Heath/Zenith, ZBASIC (for ZDOS) vol 1&2, %95-2825-01 & 595-2834-01. MS-463-1 diskette
Heath/Zenith, Z100 Technical Manual 595-2892-01, Appendices 595-2960
no disks. Tech sheets for chips. Also Intel iAPX 88 Book,
half-sized book on 8088 processor. Yellowed binder
Heath/Zenith, Z100 Technical Manual (192K), Hardware 595-2918
Schematics and hardware descriptions. Yellowed.
Heath/Zenith, Z100 Technical Manual Boot ROM listings. [2 copies]
no disks. 8/11/1982 PL/M sources, 8088 binary. Not in binder, one loose
Heath/Zenith, Z100 Users Manual: 595-2892-03. binder and manual. Yellowed.
customer demo diskette
Heath/Zenith, ZBASIC Compiler, 595-3074. 1 disk MS-463-4
box
----
Heath/Zenith, Multiplan vol 1 595-2822 & vol 2 595-2823 in binder, MS-463-7 diskette
Palette, Graphics Design Package (Software Wizardry), in binder,
"reactor-100" demo disk only
Heath/Zenith, CP/M 85, vol 1 & vol 2 595-2824; Winchester supplement 595-2855
2 diskettes, OS-53-2; updates 2 diskettes OS-53-2
Autocad 2.0 by AutoDesk, User Guide 106-007 Dec 1984 and Zenith supplement
4 disks V2.02 and registration card
loose
-----
Heath/Zenith, Z100 Users Manual 595-2892-03: binder, manual, User's guide.
no customer demo diskette
Microsoft Fortran Compiler (for ZDOS), User Guide 595-3075 and Ref Manual, 595-3096
3 disks, MS-463-2
Microsoft Fortran Compiler (for ZDOS), duplicate of above w/disks
Heath/Zenith, Multiplan, 1 binder, manual 595-3080 , Quick Ref guide.
MS-463-7 diskette. UNOPENED diskette envelope.
Heath/Zenith, CP/M 85, 1 binder, manual 595-2824-03, Quick Ref Guide.
Also CP/M 85 Winchester Supplement. 595-2855-01
2 diskettes, OS-53-2
Heath/Zenith, Z100 Users Manual 595-2892-04, User's guide 595-3118.
no customer demo diskette
Heath/Zenith, Z100 Technical Manual, Hardware 595-2860-01:
Appendix 595-2918-01, in binder
no disks. Schematics and hardware descriptions.
shelf
-----
Z-100 and Z-100PC, Pascal Compiler, V 3.0 (3.2?), 595-3237, one half-sized binder,
2 disks "Z-DOS" MS-463-5
Z-100 and Z-100PC, Microsoft Fortran Compiler V3.0 (3.2?). 595-3236, half-sized.
2 disks MS-5063-2
dBase II Z-100 and Z-100 PC. 595-3296-01, 300pgs, full sized binder.
2 disks, AT-5065-1.
Z-100 and Z-100PC, Cobol compiler, for MS-DOS, half-sized, 595-3233-02
2 disks MS 5063-3
Dbase III, V1.1, half sized, 595-3715-01
3 disks AT-5063-3
ZA-100-4, Boot ROM listings, V2.5, two volumes, full sized.
Zenith Z-248 PC series owner's manual, w/binder and box & disks,
manual 545-3673
Zenith Z-200 PC diagnostics manual, w/binder and box & disks,
manual 595-3680-01, 2 disks CB-3163-40 (2 sets?)
Zenith H/Z 100 series Disk Based Diagnostics, manual and binder
(copy of disk available)
Zenith Lotus 123 release 1A; manual and binder
four diskettes, LS-463-1
Heath/Zenith, ZBASIC (for ZDOS), 1 binders and manual
MS-463-1 diskette
MS-DOS Version 2 Programmer's Utility Pack, half-sized, for Z-100 and Z-150
manual has docs for MASM, CREF, BSE (editor)
595-3186-02, with disk CB-5063-16
Stock not yet re-inventoried as of Dec 2004:
disks:
------
Microsoft Windows, 5 disks MS-5063-30, version ?? (2 sets)
Disks only, 5.25 inch:
Ace of Aces, IBM & Tandy, (c)1986-87, 1 disk
Sim Ant (c) 1991, 014-08-604, 4 disks
Acorn Math Arcade II: 1 disk
Microsoft Flight Simulator S-252, 1 disk
Ancient Empires, V1.01, 1 disks
Mavis Beacon teaches Typing V 2.0, 2 disks
Logitech Mouseware V6.3, 1 disks
Menu Maker by ESP, V3.1, 1 disk
Z-100 PC BIOS Source, 1 disk
Z-100 BIOS source disks, 2 disks
Z-BASIC Compiler, one disk
Z-217 Utilities disk, preliminary (two available)
Z-100 upgrades:
--------------
Z219 32K to 64K video RAM upgrade
Z207-3 5.25" floppy upgrade
Z205-1 64K memory upgrade
256K memory upgrade
8087 upgrade
ZVM-135, 25 pin RGB video cable and connector
Z207 5.25" floppy upgrade
SmartWatch - battery backed clock, for Z100, Z-140, Z-150, etc.
two sets of manual and diskette
more Z-100 Heath, Scotty manuals
256K RAM Board H-205, 80 pgs
Low Profile Computer, Assembly, H-100-1
All-in-one computer, Assembly, H-121
8MHz & 256K RAM upgrade for H-101, H-121: HA-108
H-217, pictorals only
Z-207-3 5-1/4" floppy drive for H-101, H-121 (pictoral)
Winchester Drive Accessory H-217
CDR317 (hard drive controller) instruction manual from Scotty Systems
--one manual for OMTI 3100 SCSI card, no docs on this card
--one manual for Xebec 1410A SCSI card, no docs on this card
Scotty Systems MSDOS ZPC emulator version 2 manual
Scotty Systems MSDOS ZPC emulator version 2.1.3 manual
Other Heath/Zenith systems: H89, H8
Z-141, Z-151, Z-148 systems
Z-140 PC Owner's manual, half-sized, 595-3393-01, still wrapped
Z-150 Disk Based Diagnostics disks OB-4164-29 , 2 sets each in envelope
Compact Personal Computer H-148 ( 3 copies)
Parts lists and schematics, Z-140 series (3 copies)
Desktop Personal Computer H-151
Heath/Zenith Partnership Packs (2)
H-89 systems
box of Heath/Zenith H89 manuals
-------------------------------
These are in black binders by Zenith. Mold on binders but pages OK.
Wordstar 2.2X, revised 1/81 595-2681-01 no disks
CP/M 80 Basic Compiler binder with manuals, no disks:
Basic-80 595-2538-04
Basic compiler 595-2852-01
Macro-80, Link-80, Lib-80, CREF-80
Macro-80 595-2666-03, with Link-80, Lib-80, CREF-80, no disks
CP/M manual 595-2776 unopened. with CP/M 2.2 DRI manual copies
Supercalc Zenith manual 597-2663 and Sorcim User's Guide 10. July 1981
CP/M Manual 595-2776 with CP/M 2.2 DRI manuals
Floppy Disk Controller Card H 207
--1982 and 1983 editions
Illustration booklet, install Z-207 drive
H8 systems
595-2169-01 H8-17 Software Reference Manual (diskette): op system, BUG, EDIT, ASM, BASIC
595-2048-02 H8 Software Reference Manual: (cassette) Op system, PAM-8, BUG-8, TED-8, HASL-8, BASIC
595-2013-02 H8 Assembly
595-2028-01 H8 4K Static Memory H8-1
595-2033-02 H8 Parallel I/O Interface
595-2032-03 H8 Serial I/O and Cassette
595-1996-04 H9 Video Terminal Assembly
595-2017-03 H9 Video Terminal Operation
595-1970-03 H10 Paper Tape Reader/Punch Assembly
595-2020-02 H10 Paper Tape Reader/Punch
595-2161 H17 Floppy Disk Assembly
595-2160 H17 Floppy Disk Operation
Sextant and Remark magazines
REMark (Heath/Zenith magazine) issues with duplicates:
Issues 1-4, 1978
Issues 5-8, 1979
Issues 9-13, 1980
Issues 14-23, 1981
Issue 24, Jan 1982
vol 4 1983 #36-#47 (Jan-Dec)
vol 4 1983 #45, #46, #47 (Oct, Nov, Dec)
vol 5 1984 5, 8
vol 6 1985 1 2 4-11
Vol 6 1985 6, 11
Vol 7 1986 1-12
Vol 7 1986 1-11
Vol 8 1987 1-5, 8, 9, 11, 12
Vol 8 1987 1, 2, 8
Vol 9 1988 1-6, 8-10
Vol 9 1988 2, 9, 10
Vol10 1989 1, 4-7
Vol10 1989 1, 7
Sextant (Heath/Zenith magazine) issues in archives:
19 Nov Dec 85
21 Mar-Apr 86
22 may-jun 86
23 Jul-aug 86
24 Sept Oct 86
25 Nov Dec 86
27 March-April 87
28 May-June 87
29 July Aug 87
30 sep-oct 87
31 Nov-dec 87
32 Jan-feb 88
33 Spring 88
35 Summer 88
36 Summer 88
37 Fall 88
38 Fall 88
Kit Builders Journal (Heath):
Volume 1, 1987, numbers 2-6
Volume 2, 1988, numbers 1-6
Volume 3, 1989, numbers 1-2
Heathkit manuals
Vacuum Tube Voltmeter IM-18 (copy)
Smart Outlet Box GD 1495
Smart Outlet Box GD 1295
Monochrome Video Monitor HVM-1220A
Satellite Earth Station M SR-8300-6
Site Survey Manual (Satellite TV antennae)
Color TV set Model GR-295 assembly (damaged)
Deluxe Solid State Color Television 2000 series
book 1: intro and circuit board assembly
book 2: chasis assembly
book 3: adustments and operation
book 4: in case of difficulty
book 5: alignment and data
TV Subchassis and Picture Tube GR 2000
GR-2000 subchasis and Picture tube
Solid State Combo Amplifier TA-17
Monochrome Video Monitor HVM-122A
Deluxe Depth Sounder M1-1031
Audio Amplifier Model A-9C (vacuum tube)
Most Accurate Clock BC-1000
Rs-232C output accessory, GCA-1000-1
Heathkit Troubleshooter Volt Ohmmeter
"Zenith" and "Heath" since 2002
New Jersey, USA
follow this link to email @ me