[sdiy] [OT] Name that tube

[John L Marshall]

Sure looks like a triode.
Sure looks like a Navy logo.
Is that Eimac lettering on the side?
Could the stem be for inserting a gas?

Take care,
John
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----- Original Message ----- 
From: "Toby Paddock" <tpaddock at seanet.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, August 12, 2003 5:29 AM
Subject: [sdiy] [OT] Name that tube


> 
> http://www.seanet.com/~tpaddock/public/tube0187a.jpg
> http://www.seanet.com/~tpaddock/public/tube0185a.jpg
> http://www.seanet.com/~tpaddock/public/tube0184a.jpg
> 
> Any idea what this thing is?
> 
> My first thought was some kind of electron 
> gun. But no, there's nothing pointing at the hole.
> 
> Then I thought maybe a vacuum gauge.
> 
> Then maybe a pull-your-own-vacuum triode. For some 
> experiment or training. Is that a Navy logo on it?
> 
> Now I'm back to thinking maybe a vacuum gauge.
> 
> ?
> 
> Later,
> Toby
> Paddock
>