[Elecraft] OPT1 low volume
Ron D'Eau Claire
rondec at easystreet.com
Sat Oct 2 19:24:13 EDT 2004
You said the "cans aren't shorted" to ground, or did you mean the signal
path isn't shorted?
It's amazingly easy to use a tad too much solder on one of the crystal lead
pads, and it'll form enough of a bump under the can to short the signal path
to the can and ground. Usually that kills the output completely, but a
higher resistance short is also possible that would simply bring the signal
way down. Check the resistance at each crystal pin to ground and make sure
the resistance is at least many megohms (should be an open circuit).
Ron AC7AC
-----Original Message-----
I'm still trying to figure out why signals drop when I switch in OPT1
on my newly-built SSB board for my K2/100. The static goes way down,
but do do the voices!
Last weekend I discovered rfc2 shorting out to they can of crystal
X7. When I rewound it that helped some.
Today I rewound T2 and that didn't make any difference at all.
I've been around once with Gary, and I think all the obvious things
are right. The crystal cans aren't shorted to ground, the caps are
the right values and aren't shorted by DC either, the diodes are in
the right way and the voltage checks on the switching network are
fine...
-- Ward
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