This circuit was found in 80's Popular Electronics. The components used are common and the number of indication channels (LEDs) can be changed.
The 8038 integrated circuit consists of a function generator with outputs of three waveforms. It...
New Series is Supported by START to Optimize Software Support and Includes Rich Features in 4 KB...
This two-transistor circuit was found in American documentation from the 1990s. The circuit can use...