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1. #STEREOTUBE AMPLIFIERS UPDATE#
2. #STEREOTUBE AMPLIFIERS CODE#
3. #STEREOTUBE AMPLIFIERS SERIES#
4. #STEREOTUBE AMPLIFIERS TV#

After being released from the cathode, the electrons flow to the next component – the anode, due to this charged attraction.

If there wasn’t a vacuum this wouldn’t work.Įlectrons work like a magnet - a positively charged electron is attracted to a negatively charged electron and vice versa. That is the whole point of the cathode, to release free electrons into the vacuum tube after being heated. It has a coating on it that when heated (by the filament), releases electrons. The cathode is an element located next to the filament so they can best work together. The heat is essential for working with the following component – the cathode: The Cathode Not just something to make it look cool (I’ll admit that I used to think that’s what it was for). It’s actually the purpose of the filament to create heat, and therefore light. When an electrical current flows through the filament, it creates both heat and light. The filament is the part of a vacuum tube that you see glowing when the amplifier is powered on. The first component that truly is common to all tube types is the filament. It’s best to think of a tube from bottom to top with each part fulfilling a certain task which allows the next component to do its job. Most tubes, but not all of them contain these components.

#STEREOTUBE AMPLIFIERS TV#

Tube used to be used in a range of electronic equipment ( computers, radio, TV and general electrics) but was replaced by the transistor which you get in standard solid state guitar amplifiers. They needed to distinguish it from the old version.

#STEREOTUBE AMPLIFIERS UPDATE#

The 12AU7 for example can be split into several parts:Īny extra letters often refer to an update in the version number, or an adjustment by the factory. However, the American designation often contains some information about the tube.

#STEREOTUBE AMPLIFIERS CODE#

Here are some of the most common tube types with the European name followed by the American name.ĮCC83 (EU) is the same as the 12AX7 (US).īut what do those letters and numbers all mean? On some of the tubes, the code simply represents the product code, for example the ECC83. Often both terms are included in product descriptions for clarity. This usually refers to either the European or American designation. This is because a single tube can have two different identifiers.

#STEREOTUBE AMPLIFIERS SERIES#

You’ll notice that most tubes also have a series of letters and numbers after them – this can add to confusion too. We’ll stick to saying tubes in this article since that’s what I’ve always called them. It’s just personal preference which one you use. Are tubes and valves the same? Yes – “tubes” and “valves” are used interchangeably, they refer to exactly the same thing. Basic Terminology & Namingįirstly some terminology to avoid confusion in the future. It's for this reason people still use tube amps. It has the added benefit of providing a touch of that tube distortion which makes a tube tone more pleasing to the ears. It essentially controls the flow of current and amplifies signal in audio applications. They often resemble a glass bottle or jar with metal bits inside. They come in varying size, from 5cm all the way to 12cm+ and are commonly constructed from glass, plastic and metal materials. A vacuum tube is a device which is currently used in audio devices, and used to be used in a range of electronic equipment.