Strange Tubes Question

[Richard Carroll]

The Tube Fairy was very good to you.
My "Tube Lore" book sez--

JAN38111A-- xmiting triode, low capacitance 211 for crystal oscillators,
                        use type 211 for other appliations!
5814-               military, a ruggedized 12AU7

US NAVY CRC876 -not listed. From your description it may be an old mercury
vapor rectifier used in early battery chargers, if so may not be listed as a
radio vacuum tube. Not sure.  It's the first "vacuum tube" number that I
have failed to find in the book "Tube Lore" by Ludwell Sibley. It's an
xcellent reference text.

73, Dick W0EX
ps-Wally I'm not finished with the Pawnee deal yet

Wallace Gibbons wrote:

> Hi everyone,
>
> The good tube fairy left a box of tubes on my chair at work. Still don't
> know who. BUT I owe em. Four VT-4C (or 211), one a Taylor and the rest
> RCA. Now I have spares for my tesla coil. A slew of ARC-5 receiver
> tubes. Enough to populate 5 or 6 receivers.
>
> And the following strange ones. Wonder if anyone knows what they are?
>
> JAN 38111A (looks like a VT-4C).
> RCA "COMMAND" 5814, labeled on the glass this way, too. Looks like a
> 12AU7.
> US NAVY CRC 876, these are a ballast I suspect. A Big One. Has a
> threaded base a size larger than a regular lamp bulb. What was it used
> in?
>
> Any clues appreciated. The collection is growing!!
>
> Wally Gibbons
> Rockwall at tcsourceone.com
>
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