A vector graphics workstation from the 70s
10 days ago
- #tektronix
- #retro-tech
- #vintage-computing
- Tektronix 4051 graphics workstation, released in 1975, combines a terminal with a Motorola 6800 computer inside.
- The machine was based on Tektronix's earlier 4002 and 4010 terminals, which used storage CRT technology for graphics without needing a RAM framebuffer.
- The 4051 featured 8KB to 32KB RAM, BASIC programming with vector graphics subroutines, and optional ROM modules for additional software.
- Repair involved fixing a broken ON/OFF switch, reconnecting a transformer wire, and replacing a burnt-out resistor.
- Display calibration required adjusting multiple voltages, including a high-voltage (4KV) supply, to make the screen readable.
- The machine came with a ROM expander allowing up to 8 ROM cards, enhancing its functionality with additional programs and subroutines.
- Games are limited due to the display technology, but demo programs and utilities are available, with resources and an emulator found on GitHub.
- Future plans include building a GBIP flash emulator for loading programs and cloning missing ROM cards.