This article describes the 5V version of a previous 12V transistor soft latch push on, push off switch circuit. It also incorporates an improvement over the 12V version that provides for better switch de-bouncing, as well as an inverting output stage, so that the circuit defaults to “off”. The parts list and picture of the breadboard can be found in […]

This article describes how Bipolar Junction Transistors can be easily configured to act as logic gates when used in their “on” and “off” states. Five popular logic gate types will be described and constructed in this article and accompanying video. The five types are the: Inverter (or NOT) gate AND Gate NAND Gate OR Gate NOR Gate TTL Logic Levels […]