Triac switch (CB21714E)

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

Self-disconnecting battery charger (CB4975E)
This 12V battery charging circuit automatically shuts off at the end of the charge. The disconnect...
Flying Saucer Sound (CB16274E)
We do not know exactly what sound a flying saucer makes, or if it makes a sound! But this is not...
Regenerative receiver (CB22273E)
This simple 1 transistor circuit was found in an American documentation from the 60's. The...