This circuit is from Mullard documentation from 1969. Transistors support current equivalents. Output transistors must be mounted on heat sinks.
Found in American documentation from the 1980s, this circuit is a basic signal rejection filter...
This circuit is from a Radio Electronics magazine from February 1992. The circuit has the effect...
This "debouncer" was found in Popular Electronics, using TTL technology. For this reason, it can be...