0
Some high-voltage rectifier tubes were manufactured at one time containing Mercury vapor.
When operating, they glowed a bright blue.
Aside from those few, radio tubes are also referred to as "vacuum tubes", and there's a good
reason for that: They operate under high vacuum, with no gas or anything else inside. Just as
in an incandescent light bulb, if a bit of air leaks in, the filament soon fails, and the tube is dead.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How did lee deforest help the radio?
he invented the tube that made the radio i am payne stewart deforest
Where can one purchase 6L6 tubes?
Radio technology has come a long way since the days of tube radios. However, tube radio fans can purchase replacement 6L6 tubes online at thetubestore.
Can you change the bass settings on a Bose wave radio?
The only way we have found to lower the base is to put about 5 inches of rolled up sweat sock into the tube at the back of the radio. This reduces the size of the chamber which creates the base and the radio sounds much better. Roll the sock lengthwise... then slide it into the tube from the back on the radio.
What was the invention that put radio into its modern form?
Audion
Why em waves are called as radio waves?
We have several names for E&M waves, depending on their wavelength. "Radio" is one of the names ... typically the name we use for the longest class of waves.
What gas is used in a vacuum tube?
A vacuum tube does not contain any gases. All the gases are evacuated from the tube and only vacuum is left.
What are the names of some old radio components?
Tube Choke Condensor Vibrator (used in HV battery supplies) Valve is another term for vacuum tube, used in old radios.
Which is better fire tube boiler or water tube boiler?
The words are literal , a water tube boiler is water inside the tubes with hot gases surrounding them and a fire tube boiler are got gases within the tubes with water surrounding them.
Gases have ..?
Gases have no definite volume or shape. The air that you breathe, the helium in a balloon, and the neon inside the tube in a neon light are gases.
What is the word for an old radio valve?
A tube.
Smith fermentation tube?
A Smith fermentation tube is a tube that is used for the fermentation of carbohydrates. It also collects any gases that result from the fermentation.
What is used To allow pressurized gases To To vent from the crankcase?
Draft tube or pcv system.Draft tube or pcv system.
What are some radio names?
As in DJ? Or the radio station?
What is Composition of gases in tube lights?
low pressure mercury vapours
Are inert gases present in tube lights?
Yes, generally neon
What is the work gases plastic tubing?
the work pass tube is this dick
The mixture of gases used in a photographers flash tube is?
krypton and xenon
