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Tube Theory – The Diode

Both of the schematics above show the operation of a diode tube. Now let’s study a little about the theory of it’s use.

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WHAT IS MATTER (And why does it matter?)

Throughout mankind, we have tried to explain the things we see around us. This is probably what sets us apart from the apes more than anything else.

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Atoms and the Definition of Electricity

We know that molecules exist, as some can be seen through an electron microscope. They look like clusters of yet smaller particles.

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Conductors, Insulators, and Resistors.

Conductors and Insulators
Because of the distribution of electrons in the VALENCE RING of an atom, some elements will allow electrical current to flow easier than others.

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Voltage and Current

lready we have touched on the two terms VOLTAGE and CURRENT. Now it is time to discuss them further. VOLTAGE is the term used to describe the electrical “pressure” or difference of potential that we spoke of earlier.

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Sources of Electricity

Although electricity is a naturally occurring phenomena, in its natural forms, (Lightening, Static Electricity, etc) it has been of little use to mankind. We have, however, invented ways to generate electricity.

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Direct Current Theory

If we take a light bulb and connect it to a battery, the bulb will light up. The lamp lights up because current flows through it.

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Schematic Symbols

Sometime over the years, some bright soul determined that it would be difficult to draw a picture of every component that you decided to put into a circuit. However, they needed a way to tell their colleagues about discoveries and accomplishments.

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Ohm’s Law

Thus far, we have discussed current, resistance, and voltage. Now we shall discuss the important relationship that exists between the three.

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Ohm’s Law Continued

So now we have 3 different ways that we can algebraically express Ohm’s Law.
or or
But of what significance is it? Here is the gist of it.

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