I have developed an intermittent problem. At times my Paragon with neither TX
or RX on 18 and 15M or at other times 12 and 10 M. From looking at the circuit
diagram it appears the trouble must be in the low pass filter board where the
appropriate LPF is selected by relays which are energized by the "T" voltage
which is applied to the proper control line. I notice the two relays for each
LPF are wired in series. When the trouble occurs I hear a relay kick in and
later I hear a relay stuttering. Finally it may engage and things work
properly. I notice all control lines are buffered by relay driver U1. Has
anyone had this problem and solved it? Was it U1 or the relays? I never have
this problem on the lower bands. Perhaps I should replace all 4 relays for
these two LPF's? OR maybe there is some other problem? Any suggestions would
be appreciated.
Puck, W4PM
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