[Amps] 5 Minutes for Ameritron 811H to warm up?

[Bill Turner]

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On Fri, 23 Jan 2015 20:25:55 -0600, Kim Elmore wrote:

>Glass is simply a transparent ceramic. Well... More or less, anyway. 

REPLY:

Actually, there is a fundamental difference. Glass is a supercooled
non-crystalline liquid, whereas ceramic has a rigid crystalline or
partly crystalline structure. 

For more info:

http://www.differencebetween.net/object/difference-between-glass-and-ceramics/

I do have to admit I like the glow from a glass tube. Who doesn't?

Bill W6WRT