April 8, 2011 AT 4:03 pm
E1T Clock
With all our modern devices using surface mount technology , it’s still worth pointing out that vacuum tubes did more than just the tasks of amplification and switching.
Dieter Wächter shows us this with his extensive write-up on his Beam Deflection Decade Counter Tube Clock build. He gives us a great explanation on how this display tube works, pin-outs and detailed design photos.
Something magical about a display tubes green glow. 
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