This circuit was found in volume 5 of the 1995 Encyclopedia of Electronic Circuits. The circuit is based on delayed triggering of SCRs that control a DC load.
This oscillator was found in a 1967 General Electric documentation. The UJT is P-channel, an unusual...
Found in an Elektor from the 90s, this circuit triggers a Sonalert-type buzzer when the sensor is...
This precision circuit can provide timings from 0.2 milliseconds to 3 minutes accurately. The...