[ARC5] A question on parts...

[Kenneth G. Gordon]

OK. I believe I have asked this question once before, but I have (perhaps 
temporarily) lost the replies:

At least one of my hacked-up transmitters is missing the little plastic or glass 
balls from its tuning capacitors and I would like to replace those.

Can anyone point me to a source for those?

I might add that there were apparently at least two different types of those: 
an all-glass version which looked like a very miniature version of the planet 
Jupiter with its rings, and secondly, an all plastic simple ball.

The balls will work just fine in my application.

Ken W7EKB