This circuit is from an April 1991 Radio Electronics magazine. The circuit uses power MOSFETs and an integrated circuit from that time.
This two-transistor circuit was found in the January 1994 issue of Electronics Now. The circuit can...
This simple power supply circuit triggers when the light on the LDR reaches the level set on the...
Two LEDs are used in this TTL circuit. Frequency is given by C1 and C2. Power supply must be a 5 V...