Re: No metal to metal contact - a furphy?


"IFLYJ3" <wb4guk@xxxxxxx> wrote in message
news:1124288774.974881.220740@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> quietguy wrote:
> >
> > I am not sure that electricity can be generated just by rubbing two bits
> > of metal together when there is no potential difference between them
> >
> > David
>
> My understanding is that anytime two dissimilar metals are rubbed
> together there is RF energy generated. I guess because of the different
> metals having a different number of electrons which would be a
> potiential difference. I do know it happens.
>
> To demonstrate take a file and a screw driver and hold them close to
> the receiver antenna with just the receiver and servos turned on. Run
> the screw driver tip against the file and watch the servos.
>
Forgive me if this is a repeated post. Didn't see my original show up.
I have a stranded brass cable running inside a Nyrod sleeve terminated in a
Z-bend at the carb throttle lever. It doesn't seem to be a problem. Also,
I tried scraping a screwdriver tip across a file near the receiver antenna
with only the receiver powered up. It didn't get even the slightest
response from a servo. I am using an old (circa 1990) Airtronics Vanguard
radio system.

--
Brian
"Diesels never die, they just smell that way."


.

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