523RE: [Altair Computer Club] How to sell 8080b??
- Aug 16, 2004Hello Richard,
The things that contribute to the value of these old systems are
condition, originality, completeness and documentation.
Condition applies to both the cosmetics and the functionality. Clean
working machines are the best. If yours are dusty or grimy you may want
to spiff them up a bit. . . carefully.
Original machines are built to the specs that they would have been when
new (in and around 1977, in this case.) For an 8800B you're going to
want to have the original switches and at least a MITS CPU card.
Additional MITS cards will help as will other "period" cards. Date
codes on the components should be around when the machine was produced.
Yours with a black plastic 8080 dated in the mid-1980s would be less
original, for instance.
Complete machines will have everything needed to plug in and run.
Drives (tape or disk), Paper Tape readers, terminals, etc. all
contribute. An empty chassis sits on one end of the scale while a
complete system with 48K of RAM, PROMS, drives, software, etc. sits on
Every part of the machine should, ideally, be documented. The original
MITS binders with the assembly and operations manuals, manuals for any
additional cards and whatever else exists are ideal. Other forms of
documentation such as chip spec sheets, period magazines and the like
You've got several options to sell. EBay is always popular and the
Vintage Computer Marketplace (marketplace.vintage.org) is dedicated to
old computers and related items. You can also just advertise your gear
to the appropriate lists (here, various newsgroups, forums like the
Vintage Computer Forum (www.vintage-computer.com/vcforum - my favorite!)
and mail lists) and select from the offers that come in from those.
I've got some detailed records of eBay sales of Altair systems from the
last couple of years. They fluctuate wildly, but there may be some
useful information in there for you. Just ask if you want it.
Best of luck with your sales. I'm interested in adding both types of
machines to my collection so there's a chance I'll be a buyer. . .
The Vintage Computer Forum
From: ssb73q [mailto:ssb73q@...]
Sent: Sunday, August 15, 2004 5:06 PM
Subject: [Altair Computer Club] How to sell 8080b??
Hi, I was surprised to find this group. I was involved in the
microcomputer revolution during the 1970's and built a few MITS
8080b and Sol Processor Technology computers. Even developed the
first micro based system used by my company (using a 4004). I'm now
I still have 2 8080b (and 2 Sol Processor Technologies) in my
basement collecting dust, my wife insists I throw them out. I also
probably have at least 50 S100 boards (now without documentation),
(memory, serial, speech recognition, etc.). I notice that on eBay
people are buying these relics?
Any advice on how I should prep these items for sale? Where is the
best place to sell them? What can I expect them to go for?
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