What's the rarest or most unusual computer-related item do you own?

Rick Bensene rickb at bensene.com
Thu Jan 12 13:49:37 CST 2017

A selection of some of my more unusual computer-related stuff:

- A Tektronix 4132 Unix workstation  using a National 32016 CPU and a 4.2bsd port called UTek

- A Digital Equipment PDP 8/e system with 2 RK05 drives, high speed paper tape reader/punch, RX01 Dual 8" floppy drives, 16K of DEC core memory(commonly runs with a 32K NVRAM board), 2 serial ports, EAE, RTC, Memory Extension/Timeshare board, Diode boot board (RK05 boot)

- Wang 300-series calculator field service parts kit (two wooden briefcases)

- Friden 6010 Computyper Diagnostic Console

- Friden Electronics Training Course manuals (1960s)

- Wyle Laboratories WS-02 punched card programmable electronic calculator (1964)

- Busicom 207 punched card programmable electronic calculator

- Altair 8800 with Altair dual 8" disk drives

- IMSAI 8080 kit built in high school as a school project in 1976/1977

- Televideo Personal Terminal

- GE transistorised current loop acoustic coupler modem (110 baud)

- Hewlett Packard 9100A and 9100B programmable electronic calculators

- Tektronix mini-Board Bucket computer and many boards for it (EPROM Blaster, TI TMS9918-Based Video Board w/RTC, SASI Interface, 6809 CPU, 6809 ICE CPU. 32K Static and 64K Dynamic RAM Boards, 300-Baud Modem Board, 5 1/4" Floppy Controller

- SWTPC TV Typewriter

- A large format (4'x5') Summagraphics digitizing tablet with GPIB interface

- A Tektronix 4052 desktop computer (bit-slice implementation of Motorola 6800 CPU) with very rare RAM Disk module installed under keyboard

- Wang Laboratories dual-cassette drive for 700 series calculator

- An old fluorescent-lighted, two sided sign advertising Denon electronic calculators

- Some original Digital Equipment System Modules (Used by DEC for making some of their early computers)

Rick Bensene
The Old Calculator Museum

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