View Full Version : Zenith Z-100

February 25th, 2014, 11:55 AM
Just a valuation question, not technical.

I'm trying to find records of any sales of Zenith Z-100 (or Heath H-100) systems in the past 2-3 years but am getting *very* limited data. If anybody has any info they could share on this (or suggestions about where I should look/to whom I should speak), I'd really appreciate it. I'm trying to get a value for a working Z-100 in excellent cosmetic condition.

Note: Have already queried eBay via Terapeak, which provides access to 1 year of records, and mined the obvious forums/user groups.

February 25th, 2014, 12:18 PM
For buying or selling? Here's a boxed one from Aug/2013 (http://www.ebay.com/itm/VINTAGE-COMPUTER-NEW-IN-BOX-SEALED-ZENITH-Z-100-HEATHKIT-H-101-MINT-/151095721971) which ended up going for 372.50 although it looks like it was an unbuilt kit "new in box". I haven't followed the Z-100 exactly but from what I recall over the past few years that's around the price you could expect.

February 25th, 2014, 12:21 PM
For buying or selling?

That depends on whom you ask. ;-)

I'm not the seller, and I don't know if I can afford to be the buyer! Would be nice to find it a good home, though.

February 25th, 2014, 12:31 PM
Mark (mgarlanger) may also be up to date on the latest expected value. I just associated it with a few hundred but not high hundreds IIRC. Not that it's much help there ;-)

February 25th, 2014, 01:40 PM
Here's a boxed one from Aug/2013 (http://www.ebay.com/itm/VINTAGE-COMPUTER-NEW-IN-BOX-SEALED-ZENITH-Z-100-HEATHKIT-H-101-MINT-/151095721971) which ended up going for 372.50 although it looks like it was an unbuilt kit "new in box".

Yes, it was a kit, still in the box. And people now can't even put together an IKEA bed! Sheesh.
From what I've seen, though, I do think the Heathkits came with very good instructions.

Thanks for the helpful suggestions, Barythrin. :-)

February 25th, 2014, 07:32 PM
Make sure what model you are asking about. Zenith named 2 very different computers as the Z-100.

There was the Z-100 (not PC compatible) that was available in either a low profile cabinet without video(Model Z-110) or the Z-120 All-In-One with built in video. These were S-100 machines.

I paid $300 for a fully loaded Z-120 in early 2011. It came with boot disks, a full set of manuals, lots of application software, Gemini emulator board and Winchester hard drive.
In mid 2012 I purchased another Z-120 with dead video for $100. That one didn't come with any options. Just the machine itself.

Then there was also the Z-100 PC which was hardware compatible with the IBM PC. Although it was known as the Z-100 PC, the model number was either Z-150 or Z-158. This model doesn't seem to have a very high retail value, despite the fact it is a very nice machine.

February 25th, 2014, 10:56 PM
Yes, good point. This is the all-in-one S-100 machine, the Z-120. I had forgotten about the PC.

Thank you for contributing 2 more prices. You just increased the number of records in my table by 1/3. :-|