- Added support for 24 pin PALs
- Use shift registers for input
- Added LEDs to indicate activity on a socket

- Fixed the ugly silkscreen from rev.1

First produced version of the board, recognizable by a "rev.1" on the bottom right corner.
- Supports 20 pin PAL devices
- RS232 interfacing

First design, was never produced. Had some ICs too near to actually fit.