> Hi, I would like to get the opinion of this group on constructing a homemade
> variable 500 pF/1nF capacitor for my new 160 mtrs amp.
Since "p means 10-12 (million-millionth), so 1000 pF = 1 nF" you are going
to build a
500 to 1000 pF capacitor?
I would think about putting a 50 pF to 500 pF in parallel with a 470 pF
doorknob (or
similar) fixed capacitor. That should save you some space right there.
If the HPA is going to cover ONLY the top band, a simple mock up with the
tubes "in
position" will tell you the true capacitance range that you really need to
cover that one
band so a fixed (or several in parallel) in parallel with a variable just
covering the
remainder of the capacitance range will make things even smaller.
--
Ron KA4INM - I'm proud to be Chuck's pop!
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