This is an unused, factory fresh, genuine Burroughs C-2506-3B Three Digit B5750S Nixie tube type counter with memory. decoder driver circuit card assembly with a factory attached bezel. It uses standard TTL (Transistor Transistor Logic) BCD (Binary Coded Decimal) input logic signal. The high quality, fully loaded, factory built PC card comes with gold plated 30 pin edge connector. The unit requires 5 Volt DC (Direct Current) and 200 Volt DC for its operation.
It was made by the now defunct Burroughs Corporation's Electronic Components Division (ECD Plainfield NJ) around 1968-1970. This card is a complete pulse counter assembly. Excellent as a replacement, or for new projects. It can be used especially well for making a frequency counter, pulse counter or a simple DVM with a high quality fully assembled digital display. This is a real hard to find vintage collector's choice item.