This audio-driven relay was published in the July 1977 issue of Radio Electronics magazine. The circuit uses CMOS components, and the relay must be a sensitive type.
This circuit was found in an Electronic Design from the 90s. The integrated circuit is the LT1016, a...
We found this circuit in a 90s Radio Electronics. The circuit generates frequency-modulated 220 kHz signals. The...
This light effect circuit was found in the July 1971 Radio Electronics magazine. The circuit is...