The ECC83 vacuum tube is more commonly sold as the 12AX7 and is a triode tube. This tube is used in a similar way that a modern transistor would be used in audio amplification applications. The ECC83 has a smaller size and a high gain at lower signal levels making it perfect for an audio pre-amp.
when the vacuum sucks up things it goes through the tube and into the bag ...Unless you are talking about electronics, then a vacuum tube is used to form an amplifying circuit. Some tubes can emit cathode rays onto a screen (Cathode Ray Tube = CRT) to display a picture and some can function as diodes to regulate current flow.
2 states
It means that the glass envelope has leaked and is no longer a vacuum. Air inside has oxidized the getter. They generally no longer work in this condition.
an electron tube containing a near-vacuum that allows the free passage of electric current.
forward bias is in the direction a junction or vacuum tube wants to conduct currentreverse bias is in the direction a junction or vacuum tube opposes conducting current
There are two names for the tube used in Class A amplifiers developed in the USA. This valve in the US is called vacuum tube audio amplifier. In the UK they are known as valve audio amplifiers.
amplifierrectifiermodulatordemodulatorswitchindicatordisplaysensorDRAMrelay driverlogic gateetc.
I'v been doing some tube rolling myself with Jolida 100 and found that the G E 5751 low noise platinum to be the best so far. I'v tried Phillips Mini Watt ecc83, Mullard 1964, ecc83. The 5751 are suppose to be quieter that the 12ax7 and ecc83. I found the mullard a little dark in the upper region and the Phillip Mini watt a little harsh.
The Plumbicon (trademark of Phillips)is an imaging tube, think of it as the active part of a camera.
the vacuum tube
when the vacuum sucks up things it goes through the tube and into the bag ...Unless you are talking about electronics, then a vacuum tube is used to form an amplifying circuit. Some tubes can emit cathode rays onto a screen (Cathode Ray Tube = CRT) to display a picture and some can function as diodes to regulate current flow.
A vacuum tube does not contain any gases. All the gases are evacuated from the tube and only vacuum is left.
A: ABSOLUTELY but only in its function . To implement a change requires additional power requirements and design
A vacuum tube is simply a tube with no oxygen nor carbon dioxide in it (aka no air).
Millman's theorem
Vacuum tubes perform their various functions on the principle of streaming electrons: that is electrons able to fly across space from one electrode to another. If there is air in the tube then this is a barrier to the electron's flight and the tube cannot function.
who made the vacuum tubes