[Boatanchors] Cathode ray tube base connections

[Ian Wilson]

Hi Clive,
The small number of pins means that there must be some shared
connections. If you can see any of the electrode structure you may
be able to work out what's what.

Let's see, the basic CRT has
filament(2) + cathode(1) + grid(1) + A1(1) + A2(1) + X(2) + Y(2)
This is a minimum of 10 pins if independently pinned.

To get down to 8 pins requires doing something special. If it is a
loctal base you could try the 1CP1 pinout: see, for example,
http://www.r-type.org/exhib/aar0006.htm

73, ian K3IMW


On Sun, Apr 21, 2013 at 9:50 AM, CLIVE COLLINS <dartaviation at btopenworld.com
> wrote:

> Can anyone tell me where I might find the base connections for a 3CX1 crt
> please, its a rectangular 3" x 1"   but there seems to be no record that I
> can find of a datasheet anywhere, its got 8 pins on it and that has baffled
> me completely
> Thanks for your help in advance.
> Clive GW3WEQ North Wales Coast, UK.
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