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 is a simple configuration for a low-pass filter using a 741 operational-amplifier. Other...
This circuit is from an English book from the 1980s. Transistors can be general-purpose types of...
This circuit is from a technical documentation from Motorola from the 70s, and for this reason it is...