We found this circuit in the February 1987 issue of Radio Electronics magazine. It is based on an integrated RCA triac trigger available at the time. The circuit powers 4 incandescent lamps.
This circuit consists of a simplified Hartley oscillator that changes the frequency according to...
May 2017 - Mouser Electronics already has for sale the new Littelfuse SP2555NUTG diode arrays for...
I found this simple zener diodes voltage divider circuit in an old documentation. The resistor...