Recent content by alsamuef
-
A
High School Is Guitar Shielding Just a Myth?
Have you ever heard about the "cargo cult?" phenomena? I think this one of the causes for such conservatism.- alsamuef
- Post #12
- Forum: Electromagnetism
-
A
High School Is Guitar Shielding Just a Myth?
There's a good excuse for that , for once!, since the signal coming from the electromagnetic pickup is different than the optical one. For instance, the electromagnetic pickup sends even-harmonics to the amplifier. And for some reason , most people love even-harmonics sounds, like a violin.- alsamuef
- Post #9
- Forum: Electromagnetism
-
A
High School Is Guitar Shielding Just a Myth?
Hum! i see. Do you an idea about the frequency spectrum that is going to effectively canceled inside a cavity like this?. Also, what happens if we send to ground the cavity. Most guitar coils are grounded in the metallic plate at the bottom.- alsamuef
- Post #5
- Forum: Electromagnetism
-
A
High School Is Guitar Shielding Just a Myth?
Thanks for you response. :) But this still puzzle me. For example, a microwave oven works under the same principle, since is a faraday cage that is filled with radiation that cannot scape so easily. In the coil case, wouldn't the shielded cavity work in a similar fashion to a microwave, since...- alsamuef
- Post #3
- Forum: Electromagnetism
-
A
High School Is Guitar Shielding Just a Myth?
Ok, is doubt this actually works well. Some guitarists shield their guitars in the cavity of the pickup and the pick guard with conductive foil. This is supposed to work like a faraday cage. The pickup is basically a solenoid that "pick ups" the magnetic field from the magnetized string. So...- alsamuef
- Thread
- Guitar Shielding
- Replies: 13
- Forum: Electromagnetism