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kalee20 · 31st Jul 2019, 10:05 am

There was a Mullard 'Valves, Tubes, and Circuits' issue which featured the implosion-proof, bonded-on rimband, 'Direct Vision Picture Tubes' and described tests that Mullard did to try to create drama.

I seem to remember they squirted liquid nitrogen at the faceplate, ignited Thermite on the surface, swung a pendulum with a heavy weight, and simulated the TV getting hot in a burning room and then being hosed by firefighters. They reckon no flying glass occurred. Which is highly satisfactory, though probably a bit disappointingly boring!

31st Jul 2019, 10:05 am	#71
kalee20 Dekatron Join Date: Feb 2007 Location: Lynton, N. Devon, UK. Posts: 7,088	Re: CRT implosion There was a Mullard 'Valves, Tubes, and Circuits' issue which featured the implosion-proof, bonded-on rimband, 'Direct Vision Picture Tubes' and described tests that Mullard did to try to create drama. I seem to remember they squirted liquid nitrogen at the faceplate, ignited Thermite on the surface, swung a pendulum with a heavy weight, and simulated the TV getting hot in a burning room and then being hosed by firefighters. They reckon no flying glass occurred. Which is highly satisfactory, though probably a bit disappointingly boring!