Mini solar organ (CB20506E)

This circuit was found in an old documentation and can be powered by a solar panel. The touch resistor is a nichrome wire.

TV Stereo Transmitter With Decoder (CB4643E)
This circuit is from 1994 documentation, serving the transmission of analog TV signals that will...
Unregulated Power Source of 6 and 9 V - I (CB1167E)
This simple, unregulated power source with full-wave rectifying is for small appliances that do...
Overvoltage Protection Circuit (CB6076E)
This simple circuit that interrupts the supply of a 12 V load in the event of an overvoltage was found in...