This is a simplistic device to read the contents of GROM only (one sided PCB) Command Modules for the TI-99/4A using the parallel port of a standard PC.

Parts needed:

• One 2×18 pin female 2.54 mm card edge connector (you can use the narrow end of an ISA connector)
• One 25 pin male D-SUB connector for the parallel port
• One 6 pin male Mini-DIN connector for the keyboard/mouse port (used for power supply)
• One EXO3 oscillator at 12.8MHz
• One LMC7660 voltage inverter
• Three 10µF electrolytic capacitors
• One 4.7kΩ resistor

Postscript version suitable for printing on A4 paper.

Required software, for Solaris x86 or Linux