This circuit was found in an Elektor from the 90s. It is a circuit that generates different types of sound effects. The components are still common today.
This game aims to make you discover which is the combination of activated switches that make the...
In this phase shift circuit, the transistor can be any general-purpose transistor. The circuit is from...
Found in a PE Hobbyst Handbook of 1991, this circuit was originally proposed to time photographic...