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In Reply to: RE: The Magic and Mystery of Tubes posted by Madlove on April 17, 2016 at 09:21:04
that affects the sound. Different structures, designs, metallurgy, etc impacts the flow of those electrons from "C"athode to "A"node.
That's the simple explanation.
Some good books recommended.
Welcome to the Asylum!
Jonesy
"I know just enough to get into trouble. But not enough to get out of it."
Follow Ups:
Hi Jonesy, thank you for the welcome.That's amazing, I've never heard it put quite that way in anything I've read yet. Thanks!
So is the signal from the turntable "flowing" through the tubes, in & out? And once the signal hits the tubes, it activates the electrons? Or are the electrons the signal?
Edits: 04/17/16
In a tube that has voltage at the plate and the cathode is hot and the cathode is connected to ground (usually through a resistor)......electrons from the power supply are flowing from ground to the cathode, past the control grid to the plate, across the plate resistor to the power supply and then back to ground even when there is no signal from the turntable.
When there is music signal from the turntable present at the grid, the electron flow in the tube increases and decreases according to the music signal from the turntable.
The electron flow in the tube is not the electrons from the turntable. They are electrons from the power supply that are being controlled by the electrons from the turntable.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
In my "simplified" example the tubes are used to "amplify" the signal. So the signal arrives at the cathode in the tube. The electrons then "jump" to the anode. Now the signal has become "louder" and travels through wires to the speakers. As you turn the volume control up, it results in a larger quantity of electrons making the "jump" further amplifying the original signal.
Cheers!
Jonesy
"I know just enough to get into trouble. But not enough to get out of it."
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