is this raytheon 12AX7A a hitachi?

[ceylon]

"raytheon registered"...is that hitachi? something else?

 

[Dswankey]

Raytheon did have some of their tubes manufactured in Japan I'm thinking Matsushita, Toshiba didn't know about Hitachi

Check on the glass of the tubes to see if there is any codes then you can check here

https://frank.pocnet.net/other/Philips/PhilipsCodeListAB.pdf

 

[ceylon]

pretty sure hitachi--i been hearin about "hit-ray" tubes for a good while.


i dont see codes yet, but i havent had a real good
look at en yet.

 

[ceylon]

btw, didnt natsushita do the mullards? or make tubes using mullard tooling?

 

[Lavane]

btw, didnt natsushita do the mullards? or make tubes using mullard tooling?

I believe so.