Red mercury or Vacuum tubes ।। ~ Padhai Adda

Vacuum tubes or Valves

Only the general image below shows true 'valves'. Many of the other interesting tubes here are technically not all valves. Only the Miniature valve, Thyratron, VFD, Magnetron, modern X-ray tubes, Kenotron, Magic-eye and Vidicon tubes have thermionic emission from heated cathodes

People are searching for old Shutter tv / old Shutter black and white tv but this is a Fake News according to reports given in the Google and in other sites .

Yes this Vacuum tubes wre there in the old tv radio and other old electronic items but this was used as a transister to control electric current.

If you are searching for the same please don't waste your time this is a fraud , if you found Someone is demanding the same thing you should inform this to the nearest police station or report this for the same

A vacuum tube, also called a valve in British English, is an electronic device used in many older model radios, television sets, and amplifiers to control electric current flow. The cathode is heated, as in a light bulb, so it will emit electrons. This is called thermionic emission. The anode is the part that accepts the emitted electrons. The device may have other parts. Vacuum tubes must be hot to work. Most are made of glass, thus are fragile and can break. Vacuum tubes were used in the first computers like the ENIAC, which were large and need much work to continue operating.