Found in a Popular Electronics from the 80's, this circuit makes use of a time integrated to control a relay in a timed way. R2 determines the activation time.
This circuit is from a 2004 documentation serving for signals from 1 MHz to 160 MHz. The antenna is...
The pulses of light produced by this circuit are negative, that is, the lamp gives brief "off" at a...
This circuit is based on documentation from the operational's own manufacturer, from the 80's. The same...