Amplify the magnetic field of headphones?

Status
Not open for further replies.
D

divdog

Newbie level 4
Joined
Apr 20, 2010
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Budapest
Activity points
1,313
Hey all,

I am trying to amplify the magnetic field produced by headphones. Any idea how I might go about such a thing?

I thought something like a guitar pickup might work if it was more sensitive? Is that essentially what a telecoil is?

Thanks for any thoughts in advance!

Tim
 

Ah yes the telephone suction cups!

What about using an audio induction loop receiver? Like those in hearing aids.

Is it the same kind of field?
 

What about using an audio induction loop receiver? Like those in hearing aids.
Click to expand...

Yes, works with same principle.
Pure ac magnetic field generated with wire loop and audio amp.

KAK
 

You should consider, that a standard headphone has an electrodynamical voice coil actuator, that has the magnetical field mostly shielded. Any coil with sufficient number of turns can sense the field.
 

So if I were to make it from scratch I could just wind the thinnest copper wire possible around a the strongest pole magnet as many times as possible and then connect each end to an amplifier circuit as in the link KAK posted above? or do i not need the magnet and I just make a coil?

is there anywhere you can buy such coils?
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…