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Old December 6th 08, 12:34 AM posted to rec.radio.amateur.homebrew
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Posts: 2
Default Ganged variable capacitor question

Dear all,
I am just taking my first small steps into homebrew and learning as
much as I can, but I have run into a problem that has me stumped. I'm
seeing some odd behavior with a variable air capacitor (first time I
have played with one of these), and have not been able to hunt down
anything relevant searching the net, so I am hoping someone out there
might be able to help me understand this. It is a 6 gang model with
sections of 120,150,20,30,90,and 30 pf. I was able to use a
continuity meter to work out the lugs, and found that the rotor is
continuous with the frame, and stator is isolated into 6 seperate
sections with no continuity between the rotor and stator. I assumed
that I could jump the stator lugs (none of which are continuous with
the rotor) with some copper wire to add up the gangs, but when I do
this the continuity meter tells me that the rotor and stator are
connected. It only happens to the gangs that I jump. I was expecting
continuity between the stator segments of the jumped gangs, but not
between the stator and rotor. Can anyone let me know if this is an
expected result, and if not suggest what I might be doing wrong?
Thanks in advance for your help.
Rusty.
 
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