LD-1 Pencilbox

Pencilbox, by E&L Instruments, is a Logic Designer aimed at allowing a user to quickly build a simple logic circuit to interface to a microprocessor. It can fulfill modest requirements for the design and study of gates, counters, multiplexers and can even interface directly to a microprocessor. (LD-1 Pencilbox User Read more…

Minivac 601

The Minivac 601 was created by Claude Shannon and built in 1961 by Scientific Development Corporation. Designed as a logic trainer with functional memory and processing capability, though on such a basic level that you can physically see the data being processed, all 6 bits of it. Dispite this, simple Read more…