Topband: Cores and switches

[Richard Karlquist]

>  When we are using these cores for receiving, why don't we simply use
> latching relays --I do. A single, short, relatively high (40 ma) pulse is
> enough to switch the relay state and after that little or no current is
> required. By charging a large capacitor to supply the current and using a
> series resistor to drop the voltage to the capacitor one can dump the
> charge, switch the relay and limit the resting current down the coax line.
>
> Tod, KØTO

In a contest, I am madly trying different beverages when
being called by a station in an unknown direction.
This is easier to do with conventional relays.

Rick N6RK