[R-390] [KA9EGW] s/n 4214 ANT RELAY

[ka9egw at britewerkz.com]

Yep, according to my trusty Keithley 175 bench meter, those two wires show
25VDC/14VAC in standby and cal modes, and nothing the rest of the time,
readings consistent with RAW unfiltered DC.  Inspection of the antenna relay
shows nothing connected to it but 3 mini-BNC's.  Inspection of the schematic
shows no filtering on that line.  Inspectionof the area around the relay
shows no bridge rectifier of any sort close at hand.  Are they driving the
relay coil with unfiltered DC?

73, Brian KA9EGW