Tip:
Highlight text to annotate it
X
Tonight we're going to hear what a difference it makes
to have an electromagnetic shielding based on the Farady's Cage principle
in a fairly common guitar.
This one has double rail pickups a.k.a. stacked humbuckers
these pickups are less noisy than normal single-coils,
the rest of the electronics, however, is the standard Strat-like circuitry.
I'm cranking all controls to their MAX position
and we'll start by selecting the 1st position to hear the neck pickup alone.
All of the controls in the amplifier are in the middle position.
The neon lamp will be 20 cm away from the pickups
And the camera will rest over the 12th fret
-let's see if it stops rocking...-
let's turn the amp ON!
There's the noise!
Note how the hum changes when the lamp
is off.
Alright, we're going to do the test again
This time, the shielding has been installed
and I installed a coil-splitting switch here.
The lamp will be 20 cm away just as before...
... the bottom of the guitar is touching the speaker...
... all the controls of the amp are in the middle position...
(amplifier is turned ON)
... and the camera will rest on the 12th fret.
(strings sounding through the amplifier)
I hope the camera rocking doesn't bother you that much.
Ok; volume at MAX, tone at MAX, and let's turn the lamp ON.
There it is.
- I don't want to hear the puppy barking -
OK
(The amp is still ON. No noise at all!)
You can hear the difference now
Let's turn OFF the lamp...
alexanderluthier.worldpress.com alexanderluthierenglish.worldpress.com