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

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Discussion Overview

The discussion centers on the connection of a guitar amplifier to the components of a valve, specifically addressing which parts (cathode, anode, filament, or grid) are involved in the input and output of the signal. The scope includes technical explanations related to electronic components and their functions within the context of audio amplification.

Discussion Character

  • Technical explanation

Main Points Raised

  • One participant inquires about the specific connections for input and output signals in a valve used in a guitar amplifier.
  • Another participant suggests that the input is connected to the grid and the output to the cathode and anode.
  • A third participant provides a reference image from Wikipedia to illustrate the concept of valve amplifiers.
  • Another explanation describes the function of the cathode as an emitter and the anode as a receptor, explaining how a grid can control electron flow, thus allowing a small input signal to create larger output variations. The filament is mentioned as a heater for the cathode.

Areas of Agreement / Disagreement

Participants express differing views on the specific connections for input and output signals, indicating that there is no consensus on the matter.

Contextual Notes

Some assumptions about the function of the valve components and their roles in signal processing are not fully explored, and the discussion does not resolve the technical details of the connections.

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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