Looking for CRT type 130BUB31 data.
 

I'm repairing a 70's scope with this tube. Except for it apparently
having been made by Hitachi, web searches haven't turned up anything
useful.

TIA

- YD.

--

Looking for CRT type 130BUB31 data.
 

In message , Snark
writes
I'm repairing a 70's scope with this tube. Except for it apparently
having been made by Hitachi, web searches haven't turned up anything
useful.

TIA

It might help to say what the 'scope is. That way, someone might
immediately realise they have a scrap one which had a good tube.
--
Ian

Looking for CRT type 130BUB31 data.
 

Snark wrote:

I'm repairing a 70's scope with this tube. Except for it apparently
having been made by Hitachi, web searches haven't turned up anything
useful.


5" with a P31 phosphor. You didn't say if it was round, square or
rectangular. I saw some Hitachi CRTs in later model Heathkit scopes,
but I don't know if they were originals. They looked to be a Japanese
version of a 5UP31


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

Looking for CRT type 130BUB31 data.
 

Michael A. Terrell wrote:


Snark wrote:

I'm repairing a 70's scope with this tube. Except for it apparently
having been made by Hitachi, web searches haven't turned up anything
useful.


5" with a P31 phosphor. You didn't say if it was round, square or
rectangular. I saw some Hitachi CRTs in later model Heathkit scopes,
but I don't know if they were originals. They looked to be a Japanese
version of a 5UP31


Thanks. The scope's a Brazilian LABO 4521, not likely you've ever come
across one. I have the schematics, just wanted to know a bit more about
the CRT.

- YD.
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