This transmitter for the 2-meter range with a power of 1.5 W was found in a magazine 73 for radio amateurs. No information was provided about the coils.
This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it...
This circuit was obtained in a documentation from the 1970s. What it does is to delay trigger a...
In the figure we have an anti-ring or debouncer circuit with 555. The duration of the pulse is...