This circuit only works with incandescent lamps and the frequency is adjusted in the pot, depending also on the capacitor. The triac must be equipped with a heat sink. The circuit is from an 80s manual.
This traditional oscillator configuration with NAND TTL gates can generate signals up to 20 MHz,...
Author: Newton C. Braga Published:Aug, 2016 Formato:Book and e-Book Pages:...
Found in Popular Electronics, this '90s circuit generates harmonic-rich signals for testing audio...