This trigger circuit is from 80s documentation. Transistors support equivalents and capacitors depend on the type of trigger signal.
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...