I have a new-to-me Paragon 585.
The rig is slightly off frequency from its readout and the best I can do is
adjust the reference oscillator with C1 to 300 Hz lower in frequency than the
84 MHz it's supposed to be. Ten-Tec specifies this frequency must be plus or
minus 5 Hz at 84 MHz, which is the output of the frequency doubler.
I tried removing or reducing C2 but the oscillator stops oscillating. Rather
than track down a new 42 MHz crystal, I wonder if anyone with more design
skills than I have can suggest a slight redesign of the circuit to pull the
existing crystal higher.
Thanks.
Pete
WB2QLL
Mount Pleasant, WI
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