On Fri, 29 Sep 2006 14:40:26 -0700, Roy Lewallen wrote:

Ceriel Nosforit wrote:

Hehe. Well yeah, I figured as much, but why doesn't it work? Too high
impendance? Why is that something the amp can't handle, if I maybe resist
the urge to crank it up to eleven?

I'm approaching the issue from the engineering perspective, but I don't
have much knowledge in this particular field. If you can enlighten me I'd
be much obliged.

Engineering is the application of physics. An "engineering perspective"
is one that starts from knowledge of the basic physical principles
involved, and uses mathematics along with that knowledge to produce a
design or solve a problem. I've seen no evidence of either in your
approach. Whatever you're doing, it's certainly not engineering.

The main problem with what you propose is that the electromagnetic field
you create with the amplifier will be small to begin with, and it will
be attenuated rapidly with distance for a number of physical reasons.
But don't take my word for it. Crank that dude up, and don't stop at 11.
Broadcast your telephone number and wait for the phone to ring.

Roy Lewallen, P.E., W7EL

Hm. I was a student of IT on a polytechnic... The basic state of mind one
needed there was that we don't need to know all the facts by heart, but we
must know where to find them.
In this case through a few degrees of separation I had specs which say
that it doesn't need to be efficient; it only needs to work. Then when I
have it working I can begin identifying bottlenecks and come up with ways
to widen them.

Good info on magnetic field strength there, thank you. It gives me a good
idea of where to start looking and comparing.

I'm not going to experiment just yet since I'm not a radio amateur, though
I'm vying for a licence. The radio-regulatory authorities here in
Finland don't have much to do, so I'm not going to give them a reason to
hunt me down. )

--
Nos