Triac switch (CB21714E)

This 3-position switch with triac was found in country documentation with a 240 V network. Valid for other power grids.

Short circuit protection circuit (CB21197E)
This circuit was taken from a Popular Electronics from the 1990s. The circuit triggers a relay that...
Optical Theremim (CB9209E)
Found in a Popular Electronics from the 90s, this theremin is played by the position of the hand...
Audio Standard (CB21918E)
We found this circuit in a transistor manual from the 1960s. The transistor is the Germanium...