Made in Philips factory! Very early globe type, solid metal plates with inverted cup getter!
Two pieces available with the same codes, only the print is different! First buyer can choose which one I will send!
Excellent sound and build quality!!
Tested on RoeTest V10 (the best modern tube tester!)--see attached picture for measured data
PRICE IS FOR ONE TUBE!!
I will pack and secure tubes good.
Replacement black boxes!
Feel free to contact me.