| Post 28 made on Tuesday June 11, 2019 at 07:18 |
Ernie Gilman Yes, That Ernie! |
Joined:
Posts: | December 2001
30,104 |
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Erik,
what do you mean by loops?
A few decades ago I worked for Califone, which makes (or made) language labs, and I ran across a loop product which was a loop of wire that went around the perimeter of a room and acted like the primary of a transformer. Presumably there were several "turns" to this primary.
The headphones of this system acted as the secondaries, having just a coil that would pick up the varying magnetic field of the primary.
This was a real product! I have zero idea how they kept it from picking up 60Hz hum... is this what you're talking about?
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A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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