MAKING A WIRE ELEMENT PILOTRON
The wire element pilotron was a triode type vacuum tube that was invented in the mid 1920's. It used no sheet metal in its construction, only wire. Supposedly this made the tube much cheaper to make. It never was commercially produced. We will now make a reproduction of the tube and see how it works!
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MAKING AN EDISON EFFECT LAMP
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Making a type C triode vacuum tube.
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How did they make this in the 1800's?!
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RESTORING A 1921 CLAPP EASTHAM RADIO
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America Had No Radio Crystals in 1941 — So Engineers Cut 30 Million From Brazilian Quartz
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RESTORING A 1920'S BATTERY RADIO
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MAKING A REPRODUCTION COSSOR TUBE
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The Mullard story
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Tesla Tube Factory Visit—Czech Republic 1998
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What Happened to Shortwave Radios? The Truth is Brutal.
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AT&T Archives: A Modern Aladdin's Lamp, about vacuum tubes,1940
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Building a 1920s Tube Amplifier (And Tubes!)
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The Secret Life of the Radio - Remastered
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making a miniature vacuum tube triode
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Germans Couldn't Believe This "Invisible" Hunter — Until He Became Deadliest Night Ace
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Vacuum Tubes/Valves by Mullard ~Manufacture for Audio TV Radio
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Trapped Voices In This Wire - Let's Listen To Them!
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Restoring an old 20's portable battery radio.
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I Built a Magnetic Induction Water Heater- HUGE Potential
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