How Does a Guitar Amplifier Connect to a Valve's Components?

AI Thread Summary
In a guitar amplifier, the input signal is connected to the grid of the valve, while the output signal is taken from the anode and cathode. The grid controls the flow of electrons between the cathode and anode, allowing a small input signal to produce significant variations in the output. The filament serves as a heater for the cathode, enhancing electron emission. This configuration enables effective amplification of the audio signal. Understanding these connections is crucial for grasping how valve amplifiers function.
Dezz101
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Hey I was just wanting to know, for something like a guitar amplifyer what is the inputted signal connected to on the valve (cathode, anode, filament or grid) and also what the outputed signal is connected to.

thanx
 
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iM GUESSING THE INPUT IS THE GRID, AND THE OUTPUT IS THE CATHODE AND ANODE?
 
Here's a pic from http://en.wikipedia.org/wiki/Valve_amplifier"
 

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Think of an emitter (cathode) and a receptor (anode). This is a simple diode. If you put a grid between them (to make a simple triode) and hit it with an input signal, you can suppress or allow the flow of electrons from the cathode to the anode. Thus, a small input signal can be made to produce large variations in the output signal. The filament is a simple resistive heater that is used to warm to cathode so that electrons can be driven off it more easily.
 

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