National electronics valves. Anyone have info on these?

[HA_DA_JA]

I have 2 x 12AX7's in a preamp and I was wondering who made these valves?
Cheers
Dale

[norm]

Hi, You will need to find the tube code if possible? National Brand was a re-packager of other brand tubes, both good and not so good. Regards Norm

[HA_DA_JA]

ITs written in red writing and looks like made in Ottowa?
Is that a place?
Cheers
Dale

[TimS]

Is that a place?

Ottowa is in Canada Dale..

[norm]

No Dale, It is printed on the side of the tube towards the bottom. They are lightish grey and very hard to find it will be a symbol and numbers such as *24D ect., Regards Norm

[TimS]

Dale,
can you get a pic of it?
might make it easier to identify..

[TimS]

Also, check out http://www.tubeopedia.com/index.php?title=Main_Page
might help you out..

[HA_DA_JA]

Actually it is starting to look like China but not sure.
Norm I can find any marking s as you described.
Red markings say 12AX7A/ECC83

[norm]

Dale it is of Russian manufacture. They are the ones who use pointed pins. Could be from 3 different factories. Regards Norm

[TimS]

A mate posted this on another forum as I asked for you over there as well.

"The Nationals that are made in China are sold locally by Wagner Electronics Services, WES, in Sydney. I haven't used them in years, but when I did they were just average valves, no better or worse than Sovteks but not in the same class as JJs or Winged C Svetlanas."

Tim..