Categories: Uncategorized

Exactly WHAT do all those tubes do?

Several things, actually. Check out this great c. 1943 promo film produced by Westinghouse. Thanks to TW for alerting us to this clip.

chris

Tim Tkachyk says:

04/25/2013 at 5:50 pm

Really enjoyed watching this video. Thanks for sharing!

Cheers,

Tim

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