The Collins KWM-380 is an amateur/military high frequency tranceiver that is
completely self-contained except for an antenna tuner. So we built one to match it.
The tuner is basically an E.F. Johnson "Matchbox" with a Diawa dual needle SWR bridge and an antenna selector switch.
The tuner is basically an E.F. Johnson "Matchbox" with a Diawa dual needle SWR bridge and an antenna selector switch.
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