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CHESTER'S COMPUTER MUSEUM
31 Old Computers and Counting
Founded 1993 in a spare bedroom in Albuquerque, New Mexico · Admission free

> RUN MUSEUM

CHESTER'S COMPUTER MUSEUM
LOCATION: THE SPARE BEDROOM
COMPUTERS ON THE SHELVES: 31
OLDEST: ALTAIR 8800 (1975)
CURATOR: C. CUTSHALL
HOUSE RULE: ONE IN, ONE OUT
TIMES RULE BROKEN: 30

>_

[ The Museum | The Collection | The Altair | Restoration Tips | Finding Old Computers | Want List | Mitchell's Corner ]

Take the tour. Click a snapshot to jump to it.
Snapshot of the Museum's shelves Snapshot of the Altair's lights Snapshot of Chester at the workbench Snapshot of Chester at the hamfest Snapshot of Mitchell at the Commodore PET

WELCOME TO THE MUSEUM

Welcome! My name is Chester Cutshall. I'm 45, and I teach electronics at a public high school here in Albuquerque, which means I spend my days explaining Ohm's law to sixteen-year-olds and my evenings and weekends in a spare bedroom full of old computers. My family calls that room the Museum. This is its home page.

It started with a mistake. In 1978, with savings from my first teaching job, I walked into Radio Shack and bought a brand-new TRS-80 Model I. I learned more from that machine in one year than I did in four years of college. (Please don't tell my college.) Then in 1984 I sold it to buy an IBM PC clone, because everybody said that was where things were headed, and I have regretted it ever since. The clone was faster, I'll grant you. But it never felt like mine.

Nine years later, in 1993, I was poking through a garage sale on a Saturday morning, and there on a card table between a fondue pot and a box of shoes was a TRS-80 Model I, the very same model I'd owned. Ten dollars. I paid the man, carried it to the car, sat in the driveway and grinned. I had my old friend back, more or less. Then a second computer turned up, and a third, and you can probably see where this is going.

Today there are 31 computers in the Museum, lined up on gray steel shelving along the walls, with boxes of manuals and cassettes and floppy disks stacked wherever there's room. The guest bed moved out in 1995, and our guests haven't been back since. I'm told those two facts are related.

My wife, Sandra, is a nurse and a very patient woman, and she has exactly one rule about the Museum: nothing new comes in unless something goes out. It's a good rule. It's a fair rule. By my count it has been broken thirty times. I keep careful records, which may be the problem.

This March I finally bought one of the new digital cameras, the kind that saves the pictures right onto an ordinary floppy disk, so I could photograph the whole collection for the insurance company. Once I had the pictures, it seemed a shame not to put them on the Web for the rest of you. So here we are. The very first picture I took with it is the one below.

EXHIBIT A
The Museum: a spare bedroom with gray steel shelves along the walls packed with old computers, keyboards and small monitors, and a folding table holding a computer with a glowing green screen and a joystick
The Museum from the doorway, Saturday, March 20, 1999. The flash lit up the near shelves and gave up on the far corner. The folding table holds whatever I'm working with that week, hooked up and running, with a joystick handy in case Mitchell wanders in. Software boxes and books are on the bottom shelf. Sandra would like it noted that the cords across the carpet have since been taped down.

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THE COLLECTION

Here is the inventory, the same list the insurance company has, minus my commentary. "Came out" is the year the machine first went on sale. Where I don't have that year from the machine's own paperwork yet, I've put "early '80s" rather than guess. A collector's page is no place for guessing.

Machine Came out Where I found it Paid Works?
Altair 88001975Hamfest, fairgrounds parking lot, Oct. '98, in a box marked MISC$75Yes!
TRS-80 Model I1977Garage sale, 1993. Number one.$10Yes
Commodore PET1977School surplus auction, 1995$15Yes
Apple II1977The back of a friend's closet, 1996FreeYes
Atari 8001979Thrift store, 1997$6Yes
Osborne 11981Hamfest, June '99$5Not yet
TI-99/4Aearly '80sGarage sale, 1994$3Yes
Commodore VIC-20early '80sThrift store, 1995$4Yes
IBM PCearly '80sAn office cleaning out its back room, 1998FreeYes
Kaypro IIearly '80sSchool surplus auction, 1997$10Partly
Timex Sinclair 1000early '80sGarage sale, 1996, still in its box$2Yes
...plus 20 more from the same years: the little home computers people got for Christmas and then forgot in the closet, a couple of heavy business machines, a few that are still waiting their turn on the bench, and the spares I keep for parts. The full list is with the insurance company, and in my notebook, and in my head at two in the morning.

"Yes" means it boots up and does everything it did the day it was new. "Partly" means it powers up and that's as far as we've gotten. "Not yet" means it's next in line on the bench.

Paid for all 31 together, by my notebook: $361. That is less than one Altair kit cost in 1975, which is my argument. Sandra's argument is that 1975 was a long time ago.

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THE STAR OF THE SHOW: THE ALTAIR 8800

If the Museum has a crown jewel, this is it, and it's a hometown story. The Altair 8800 was built right here in Albuquerque, by a company called MITS, starting in 1975. It was on the cover of Popular Electronics in January 1975, and you could buy it as a kit for $397. Inside is an Intel 8080. What it doesn't have is a keyboard or a screen. You program it by flipping the toggle switches on the front panel, and you read the answer in the rows of red lights. This is the computer that started it all, and it started it right here in town.

ALTAIR 8800 - FACT SHEET

BUILT BY: MITS, ALBUQUERQUE, N.M.
FIRST SOLD: 1975
COVER: POPULAR ELECTRONICS, JAN. 1975
KIT PRICE: $397
PROCESSOR: INTEL 8080
KEYBOARD: NONE
SCREEN: NONE

MY PRICE: $75, OCTOBER 1998

I found mine in October of 1998 at a hamfest, the swap meet the radio and electronics folks hold in the fairgrounds parking lot. Under a table, in a cardboard box marked MISC, behind a tangle of cable and a coffee can of knobs, was a wide, low metal box with a row of switches across the front. I knew what it was before I had it halfway out of the box, and I had to stand there a minute and act natural. The seller was an old engineer cleaning out his garage. He wanted seventy-five dollars. I did not haggle. I'm told that is a mistake at a hamfest, and I don't care one bit.

Over the winter I went through it on the bench in the garage. The big trouble was in the power supply, where the capacitors had dried out after all those years. I replaced them, checked everything twice, and then checked it again. The first time the front panel lit up, I hollered loud enough that Sandra came out to see who'd gotten hurt.

Now it runs a little program that I toggle in by hand, one switch at a time, which adds two numbers together and shows the sum in the lights. That's it. That's the whole show. It takes me a few minutes to put in and the Altair no time at all to run, and every time it works I grin like a fool. My students think a computer that can't even show you a letter is the saddest thing they've ever seen, right up until I let them flip the switches themselves.

EXHIBIT B
The Altair 8800 on the workbench: a blue front panel with two rows of glowing red lights above a row of small toggle switches, and Chester's hand on the switches
The Altair with its lights on, Saturday, April 17, 1999. That's my hand on the switches, and the power switch is the black one at the left. Sandra held the camera, and I would like that entered into the record as support for the hobby. Behind it you can see my pegboard of tools and a couple of machines waiting their turn on the bench.

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RESTORATION TIPS

Hammer People write and ask how to get started fixing up an old computer. I teach this for a living, so you're going to get it as a numbered list. There will not be a quiz.


EXHIBIT C
Chester at the garage workbench, glasses pushed up on his forehead, brushing the open green circuit board of a gray and black keyboard computer under a magnifying lamp
On the bench, Saturday, May 22, 1999. That's me with the garage-sale Model I, the one that started it all, opened up for a good cleaning. After six years on the shelf a few of its keys had quit. Mitchell took this one. You can see most of my outfit: the magnifier lamp, the meter, the soldering iron, a spray can, a little brush, and the top half of the case set aside on the right. The monitor on the right was waiting to find out if I'd done it right. (I had.)

1. Never plug in an old machine you haven't checked. I know. You want to see if it works. Don't. Open it up and look first, for anything burnt, cracked, leaking or bulging, for screws rattling around loose, and for mouse nests. (I have found two.) Check the power supply first, because a bad power supply can take the rest of the computer down with it.

2. Suspect the old capacitors. The electrolytic capacitors, the little cans in the power supply, dry out with age. That's what was wrong with my Altair. If one has bulged on top or leaked, replace it, and on a machine twenty years old, think about replacing them all. Use the same value and at least the same voltage rating, and mind which way they go in. They have a plus side and a minus side, and they don't forgive you for getting it backwards.

3. Leave the inside of the monitor alone. The picture tube in a monitor can hold a dangerous charge long after it's been unplugged. Unless you've been trained to work on them, don't. I give this speech to every class, every fall, and I'll give it to you too.

4. Cleaning keyboards. Before you pull off a single key, draw a map of the layout, or nowadays, take a picture of it. Wash the keys in warm water with a little dish soap and let them dry overnight on a towel. Clean the board with rubbing alcohol and a soft brush. An old toothbrush is perfect, as long as it's an old one. Let everything dry all the way before power goes anywhere near it.

5. Storing cassettes and floppies. Keep them in their cases, standing on edge like books, somewhere cool and dry, and away from magnets, which means away from speakers and the backs of monitors and TV sets. Never leave them in the car. In Albuquerque in July, a car is an oven, and a cassette in an oven is a pretzel. If a tape matters to you, copy it while it still loads.

6. Keep a notebook. Write down what you did, what you replaced and where you got the parts. I keep a spiral notebook for every machine in the Museum. In ten years you won't remember, and the next fellow will want to know.

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WHERE TO FIND OLD COMPUTERS

Old computers are everywhere this year, if you know where to look, and most of them are on their way to the dump. Here's where mine came from:

  • Hamfests. Swap meets for ham radio operators and electronics people, usually on a Saturday morning, usually in a parking lot. Get there at dawn with small bills and a cup of coffee, and look under the tables, not just on top. The good stuff is in the boxes marked MISC. Ask me how I know.
  • Garage sales. Ask! People don't put an old computer out on the driveway because they can't imagine anybody would want it. "Any old computers in the garage?" has gotten me four machines so far.
  • School surplus auctions. Schools are replacing their old machines as fast as the budget allows, and the old ones go to the surplus auction. I'm a teacher, and I can tell you nobody at those auctions is bidding against you for a twenty-year-old computer.
  • Thrift stores. Check the electronics shelf every week, because it turns over fast. The folks pricing things usually go by size, which is how I got an Atari 800 for six dollars.
  • The back of people's closets. My best source of all. Tell everybody you know what you collect. Sooner or later somebody says, "You know, I think my brother-in-law has one of those," and the brother-in-law is glad to see it go. That's where my Apple II came from.
EXHIBIT D
Chester grinning in a sunny fairgrounds parking lot, holding up a heavy beige portable computer by its handle, with tables of old electronics, men in caps holding coffee cups, and mountains under a blue sky behind him
Five dollars! The hamfest, Saturday, June 12, 1999. That's my Osborne 1, the first portable computer most people ever saw. It weighs about 24 pounds and has a 5-inch screen, so I call it a luggable. A fellow at the next table took this for me. Behind me are the Sandias, the early birds with their coffee, tables full of things somebody's wife told them to get out of the garage (I'm in no position to talk), and somebody's truck propped open for business.

The Osborne is number 31, the thirtieth time Sandra's rule has been broken. When I carried it in, she asked what was going out. I offered a box of old cables. She said cables don't count.

> Y2K READINESS REPORT

MACHINES IN MUSEUM: 31
MOST: NO IDEA WHAT YEAR IT IS
MACHINES WORRIED ABOUT IT: 0

>_

Everybody at school keeps asking whether the Museum is ready for Y2K. Most of my computers don't know what year it is at all, and they're happier for it. On New Year's Day I plan to toggle a sum into the Altair and see if it still adds. I have a feeling it will.

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THE WANT LIST

Sandra has asked me to make clear that this list is for entertainment purposes only.

  • An IMSAI 8080. The Altair could use some company.
  • A Heathkit H8. I've wanted one since long before I had anywhere to put it.
  • Manuals for anything on my list, especially the originals that came in the box.
  • Program cassettes for any of the machines above, even if you think they won't load anymore.

If one of these is sitting in your closet, write me. I'll pay fair, I'll come get it, and it will have a good home with thirty-one friends.

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MITCHELL'S CORNER

Our son Mitchell is 13. He'd rather play video games than restore anything, but he's coming around. I gave him his own corner of the page and promised not to change a word except the spelling.

EXHIBIT E
Mitchell, 13, grinning over his shoulder from a rolling office chair as he types on the Commodore PET, an all-in-one computer with a built-in screen, at a folding table by a bright window, with steel shelves of old computers behind him
Mitchell at the Commodore PET, Sunday, July 4, 1999. He came into the Museum to ask when we were leaving for the fireworks and stayed an hour. I count that as progress.

Hi, it's Mitchell. Dad says I get my own corner if I write something, so here it is.

Most of the time I'd rather be playing video games than washing keyboards. But some of this stuff is actually kind of cool. The Altair doesn't have a screen, so the answer comes out in the red lights and you have to read it in binary. I can read it faster than Dad now. He says that's because I'm young. I say it's because I'm good.

The PET is my favorite. I made it print my name all the way down the screen, over and over, forever, until Dad made me stop so we could go see the fireworks.

Dad calls the Osborne a "luggable." I carried it in from the car. I would call it something else.

He pays me a dollar a keyboard to wash the keys. I'm trying to get it up to two.

- Mitchell

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AND ONE LINE FROM SANDRA

Sandra reads every word of this page before it goes up, and she asked for exactly one line of her own. Here it is, as delivered:

"One in, one out, Chester. I'm still waiting on the out."

Point taken, dear.


Visitors to the Museum since March 1999:
003318

Questions, old computers, or a closet you'd like cleaned out?
Write the curator at [email protected]

Made with Notepad Y2K compliant

Last updated Saturday, September 25, 1999
© 1999 Chester Cutshall