Comments on: RADIO TUBE OF METAL CAN BE WALKED ON http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/ Yesterday's tomorrow, today. Mon, 06 Oct 2008 23:45:04 +0000 http://wordpress.org/?v=2.6.2 By: Adrian http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046765 Adrian Thu, 14 Feb 2008 09:33:47 +0000 http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046765 How dangerous is that? Makes me wince at the thought of falling base over apex. How dangerous is that?
Makes me wince at the thought of falling base over apex.

]]> By: albear http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046719 albear Wed, 13 Feb 2008 20:12:20 +0000 http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046719 Wow! vacuum tubes of the future Wow! vacuum tubes of the future

]]> By: Alan J. Richer http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046711 Alan J. Richer Wed, 13 Feb 2008 17:59:08 +0000 http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046711 Oh - forgot one thing! You can still keep your coffee pot warm over metal tubes as easily as glass ones...a thermionic diode is a thermionic diode...they all get warm and cozy (and I have the burns to prove it! :) ) Oh - forgot one thing! You can still keep your coffee pot warm over metal tubes as easily as glass ones…a thermionic diode is a thermionic diode…they all get warm and cozy (and I have the burns to prove it! :) )

]]> By: Alan J. Richer http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046710 Alan J. Richer Wed, 13 Feb 2008 17:57:52 +0000 http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046710 Ah, yes...when men were men and tubes were metal! I must say that developing circuitry with metal-cased tubes was very nice - shielding was built-in to the device, so all you needed to pay attention to was the lead routing under the chassis and your design was very likely to work. They were also really good for mobile work - wouldn't often break or go bad under vibration the way glass tubes would. Alan Ah, yes…when men were men and tubes were metal!

I must say that developing circuitry with metal-cased tubes was very nice - shielding was built-in to the device, so all you needed to pay attention to was the lead routing under the chassis and your design was very likely to work.

They were also really good for mobile work - wouldn’t often break or go bad under vibration the way glass tubes would.

Alan

]]> By: Matt http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046698 Matt Wed, 13 Feb 2008 11:18:04 +0000 http://blog.modernmechanix.com/2008/02/13/radio-tube-of-metal-can-be-walked-on/#comment-1046698 Metal tubes are practical and great for RF service; but without that comforting glow they're about as fun to look at as a transistor. Metal tubes are practical and great for RF service; but without that comforting glow they’re about as fun to look at as a transistor.

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