This circuit was found in General Electric documentation from 1964. It makes use of a PUT, called the PNPN planar key at the time. The circuit has two supply voltages.
This circuit is from a documentation on the MC1539 from Motorola and may, however, be implemented...
This circuit makes na incandescent lamp flash fast producing the stroboscopic effect. The speed is...
This interesting circuit found in an Elektor from the 90s controls loads in four quadrants of the driving...