Found in a 1969 Electronics World, this circuit generates low frequency signals with two repetition bands. Transistors support modern equivalents.
The circuit shown in the figure is suggested by Maxim (www.maxim-ic.com) and makes use of the...
This circuit was found in a Popular Electronics of the 90s. It operates a third brake light that...
This circuit is from a Radio Electronics magazine from August 1990. The indicator module is of a...