Vintage Computer Festival Pacific Northwest 2018

February 10th and 11th, 2018

at Living Computers: museum + labs in Seattle, WA

Some of the exhibits at the Festival

(Click on a picture for a larger version.)

Every imaginable type of floppy disk from 2.5" to 120 MB!

Digi-Comp II recreation.

MOnSter 6502, running a game. It is a transistor-for-transistor working replica of the 6502 microprocessor, and was reverse-engineered from the actual die. Due to the gate capacitance of the discrete MOSFET transistors, it only runs at 60 kHz.

A close-up of the MOnSter 6502.

Anyone need spare parts for a PDP-8?

BlinkenBone: Program a PDP-11/70 over a reanimated front panel.

My booth.

A PDF copy of my poster is here.
The complete festival program is here.

I had several very enjoyable conversations about my floppy disk reader project.

As of today (2018-Feb-14) I have only imaged 6 of my old floppy disks. Three of them had zero errors, but the other three had a total of 24 errors. However, after modifying the software digital PLL coefficients, I was able to eliminate all errors except for one. I'm hoping that with more tweaking I will be able to eliminate even that error. Not bad for disks that are 25-34 years old!

Some of the museum's computers on display. Many are available for the public to play with.

Cray 1. This unit is not functional. (But they have a Cray 2 waiting for restoration.)

Wiring of the Cray 1 -- looks like a rats nest!

DEC PDP8/e system.

Control Data 6600 Supercomputer.

Xerox Sigma 9.

IBM 029 Keypunch. I punched thousands of cards on a machine like this at B.C.I.T.

DEC PDP-7 computer.

Jeff using the Xerox Alto, the world's first modern personal computer.

Kenbak-1 computer (TTL, serial memory), SCELBI-8H 8008 computer, homebrew Intel 4004 board.

On Sunday morning before the museum was open to the public, Cynde, the museum's Collections Manager, gave some of us a tour of their huge basement storage area and restoration work areas. These pictures show only a very tiny portion of what we saw. Fascinating!

I think these are LGP-30 vacuum tube computers.


IBM 711 punch card reader.

Card cages with lots of cards.

Neat wiring, but very dense!

In need of lots of TLC.

Data General Eclipse minicomputer?

Rows and rows of disk drives.

Lots of spare chips.

Rows and rows of tapes.

Punch cards.

Shelf after shelf of microcomputers of every description.

HP 2100S minicomputer. Similar to the HP 2100A I used at B.C.I.T. 1974-1976.

Large (in size, not capacity) hard disk drive.

Restoration work area.

Many, many more pictures, and reports from other people who attended:
Michael Brutman's Google Photo Album
Atlanta Historical Computing Society

I hope you enjoyed this tour!
David C. Wiens

My Sardis Technologies' home page: Sardis Technologies

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Last revised 2018-Apr-11 21:50 PDT