"TRABEM" bravely wrote to "All" (23 Oct 05 21:08:29)
--- on the heady topic of " HIGH Q CAPS FOR VLF LOOP ANTENNA?"

TR From: TRABEM
TR Xref: core-easynews rec.radio.amateur.antenna:219247

TR I learned about TC in the WB4VVF Accukeyer days when I was much
TR younger and foolish. I built one, it worked great. But, I used a disc
TR ceramic cap for the clock speed generator. I could actually detect the
TR keyer changing speed as I sent cw, which I assumed was due to the TC
TR of the disc ceramic. Touching a soldering iron to the outside of the
TR cap drove the keyer speed wild. Anyway, I learned my lesson about
TR disk ceramic caps the hard way and didn't want to repeat the error 25
TR years later by using a cap that didn't have a good temco.

Hey those tiny square blue bypass caps are great for measuring
temperature. I had one on the workbench in a bridge and the IR heat
from my bare hand was changing the reading from at least a foot away!
Ceramic bypass types vary their capacitance a lot with temperature and
voltage.

A*s*i*m*o*v

.... Hanging: Early form of bungee jumping practiced in the old west.