Looking for cable, 2 coax with overall 3rd shield
On 3/18/2014 2:25 PM, William Sommerwerck wrote:
"amdx" wrote in message ...
On 3/18/2014 12:26 PM, William Sommerwerck wrote:
Most cable dielectrics generate piezo voltages.
Ok, see if I can generate a not unreasonable amount
of piezo electricity.
All you have to do is attach the cable to a mic input, then strike the
cable against the edge of a table. Or hit it with a hammer. Almost any
zetz will do.
The first time I heard this was from the cables on a moving-coil
transformer. I was really surprised. I knew of piezoelectricity, but
didn't know that cable dielectrics could generate it.
I guess the point is some cable generates less piezoelectricity than
others. I would want less.
Mikek
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