Need EL84 Brand Identification

[kiffou78]

Hi,

I found an old EL84 tube, and I was wondering which brand it was.

Brand logo is kind of scratched and I can't figure out what it is written.


This is the draw of what I see (characters and lines are white and character just before the 'R' may be a 'T' but not sure) :



(I think 10-58 is the building date : october 1958)

Do you have any idea ?

(It may be a french brand since I found it in france)

Thanks

[radiostar]

It's Ultron, please send a photo for detailed answer ...

[Soonerorlater]

Why not the rebadger " Haltron " ?


+1 For photo..........

[Ty_Bower]

If it was made in a Philips plant during the fifties, you should be match the construction against one of these photos:

Tube Classics - Philips Audio Tubes

[kiffou78]

Here comes a picture :


thanks for your replies

Image resized, please think of others with slower internet connections please.

[kiffou78]

Oupsss kind of big picture... sorry

[TG]

Neotron, obviously

Here's the EZ81 with the same logo:

[Soonerorlater]

What does the printed/etched code near the bottom of the valve say, looks like a Mullard to me...

[kiffou78]

Neotron ! you got it thanks.... Is that famous ? (for guitar amp I mean)

[TG]

Originally Posted by kiffou78

Is that famous ?

It's OEM for Mazda. Should be not that bad