[Amps] russian door knob caps for R Ftank circuit

[Manfred Mornhinweg]

Hi Bill,

 > Oddly, the 3300 pF use 10-32 screws and the 470 pF use metric.

Not really. The 3300pF also has metric threads, but larger than those of 
the 470pF one. These are M5 threads: 5mm nominal diameter, 0.8mm pitch, 
60 degrees. It just happens that the 10-32 screw can be screwed into 
that thread, because its pitch is almost exactly the same: 0.79375mm, 
and it is sufficiently thinner (4.6mm) to accomodate the difference in 
angle (55 degrees). But it is a poor fit, and the screw might work 
itself loose. So, it's better if you use the correct metric M5 screw 
with these caps.

Manfred.

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