Digital: Clock Down Counter

This is a low cost 4 digit presettable down counter with output and reset. The count input can be used for both low and high speed applications.

This is a basic low cost counter module. Two or more may be plugged together with 6-pin sockets and harness provided. Excellent use as event counter. Has a single 3-digit display. Uses the 14553 and 14551 chips. Has count and reset switches with debounce

This is a low cost 4 digit Up/Down Counter. Count range is from 0000 to 9999 (counting up) or 9999 to 0000 (counting down).

Complete instructions and circuit diagram for a Geiger counter meter device, which will allow you to measure radiation levels.

An indispensable piece of electronic equipment for testing and measuring digital equipment. This Electronic Kit is normally used for fault finding and testing but can also be a great help in design work and to see how digital equipment works. Switch for u

Radiation Alert Monitor 4 Kit or completed unit Geiger Counter

This Digital Roulette Kit is just like the real thing. With a push of a button, the LEDs spin round and round. Where they stop is anybody's guess. Its unique design includes "pop out" chips of different values. Enjoy hours of fun with this game