This high-power amplifier with only 4 integrated circuits was found in the 1990 special issue of Radio Electronics Experimenter magazine. The circuit reaches 100 W per channel.
This circuit uses two sensors that are placed at the intersection of a miniature railroad, causing the LED...
Many oscilloscopes have high impedance inputs that make it difficult to observe high frequency signals...
This wired intercom circuit was found in a March 1965 Radio Electronics. The circuit uses two...