[Boatanchors] Cathode ray tube base connections

[Ian Wilson]

Ah, 3XP1 at least shows up in searches. Since it appears to have been
made by Sylvania, perhaps it has the same basing as the 3ASP1:
http://frank.pocnet.net/sheets31.html

Note that there is a separate A2 connection, so they can get away with
an 8-pin base.

73, ian K3IMW



On Sun, Apr 21, 2013 at 5:43 PM, Ian Wilson <ianmwilson73 at gmail.com> wrote:

> 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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