[Antennas] PLASTIC EGG INSULATORS

[Harvey&Bessie]

To see how "good" they are (dielectric loss) put one of them in a microwave oven for 1 
minute or so, if it heats up it's a poor dielectric, if it stays cool, a good one. Note: 
to protect the magnetron in your microwave, put a cup of water in the oven while making 
this test, to serve as a load in case the insulator has a good dielectric (doesn't absorb 
much power).
Harvey/W4TG