[NLRS] FS: Variable Capacitors

[Dr. Gerald N. Johnson]

3 isn't differential, its just a different way to make a dual stator 
capacitor, the value in each section changes the same direction as the 
shaft turns. A differential will have maximum C on one section and 
minimum on the other swapping in half a turn.

Numbers 5 and 6 are PA tuning capacitors for Command transmitters, ARC5 
for navy and BC something for transmitters. 4 is the corresponding VFO 
capacitor and its plates were sometimes made of invar for better 
temperature stability. They will be attracted to a magnet. I don't think 
the PA capacitors used invar but they might have just to track the VFO 
better.

73, Jerry, K0CQ

On 8/10/2015 8:21 PM, Henry wrote:
>
>
> I have the following variable capacitors for sale. The are labeled 1
> through 10 and have the following values as measured by my AADE meter
> and are priced as follows plus postage. If interested please send me
> your mailing address so I can calculate the postage.
>
> 1) 18-250pf $10
> 2) 10-110pf dual gang $10
> 3) 15-200pf dual differential gang $10
> 4) 29-147pf $8
> 5) 29-147pf $8
> 6) 29-147pf $8
> 7) 15-80pf $8
> 8) 18-53pf $6
> 9) 10-110pf $6
> 10) 5-35 and 5-40pf dual gang $8
>
> They can be seen at:
>
> http://home.comcast.net/~hsknoll/site/?/photos/&PHPSESSID=773fe668c4ea54eea1ccd2d602b870f6
>
>
> Click on the image to enlarge.
>
> Henry WA0GOZ
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