[Boatanchors] What is a 1630 tube?

[Ian Webb]

VT-128    1630 (A5588) Electron-multiplier pre-amp  U/W SCR-270, 271 radars

From: http://pages.cthome.net/fwc/VT.HTM
Military VT- Tube to Commercial Tube Conversion Tables

=============

OR:

RCA built the BC-403(*) 5" oscilloscopes and the BC-404(*) receivers as a
subcontractor. The first of the BC-404's used a state of the RCA art,
"Orbital Beam tube," VT-123, that evolved into the 1630/ VT-128. (2nd RF Amp.
)

From: http://www.radomes.org/acwrons/equip/SCR-270.html
SCR-270 HISTORICAL NOTES, by Don Helgeson


Ian, K6SDE


krk@ix.netcom.com wrote:

> Hi,
>
>   I picked up an RCA 1630 tube this weekend at a surplus store. It's
> a large acorn style tube. I bought it just for fun. After tearing through
> all of my docs, I can't find mention of this type number. Anyone
> have anything on it? Oh, it also says VT-128 if that helps. I don't
> know why I find tubes fascinating. Maybe its because I can see its
> functional parts without a microscope...
>
> Thanks,
> 73 - Ken kb7rgg