This limiter circuit provides a constant amplitude signal at frequencies of up to 100 MHz. The circuit operates with 9 mV input signals and was found in a 1969 US documentation.
This simple metronome, from 1985 documentation uses only transistors and has two settings. For...
This circuit is suitable for modulating AM transmitters. The circuit is from a 1977 radio amateur...
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...