This circuit is from a 1975 Miniwatts magazine, therefore using Philips components from that time, now difficult to find. The circuit directly controls a heating element via a Triac.
Emitt This crystal-controlled oscillator can generate signals from 100 kHz to over 30MHz. The...
This circuit was found in documentation from the 90s. The components used are not common today. The...
This circuit was obtained in the National Semiconductor Linear Applications Handbook of 1994. The...