This circuit was found in Motorola documentation from the 1980s. PUTs are not common components today and lamp power depends on the SCR.
The sensor of this circuit found in Popular Electronics can be formed by a piece of fabric between two...
Found in a 1963 documentation, this circuit employs germanium transistors of the time. Transformer and...
This circuit was obtained in an old English magazine (TSI) 1998 and consists of a Schmitt trigger...