Those Leach relays were designed for switching RF. Depending on the impedance
and thus the voltage, they're OK for over 1kW. I have picked up 24 volt DC ones
for $2 a time in the Dayton flea market....For switching high voltages at RF
with contacts that can handle many amps, look for the antenna relay from a WW2
Command transmitter. They are generally a dollar or two in flea markets,
because a standard modification to use a Command tx in amateur service was to
remove the relay..
Since coils are being switched, I don't see the need for coax relays.
vy 73
Peter G3RZP
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