This driver for audio signals using the TAA435 integrated circuit was found in Philips 1968 documentation. The integrated circuit is difficult to obtain today.
Found in Radio Electronics this circuit uses a fotodiac to drive a triac. The circuit can use...
Based on components from Linear Technology, we find this circuit in a 2005 manual. The circuit...
Found in Popular Electronics from the 90s, this generator uses integrated circuits from that time....