ECC83 12AX7 PHILIPS MINIWATT HOLLAND PAIR 2 Pcs MATCHED NOS
PHILIPS HEERLEN
with box,extra strong !!!! VERY EXTRA BALANCED AND MATCHED!!!!
SHORT RIBBED GREY PLATES, LARGE RING GETTER
MADE IN HEERLEN HOLLAND AMPEREX FACTORY 1962 PRODUCTION
The text has been deleted as colors in some tubes are easily removed. when
aging tubes or testing, as much care is taken with the fingers, the color is
retrieved and thus removed.
Code : I65 / delta2C3 , and one tube I65 / delta2C3
They are also tested for gas, short and leakage
TESTED FOR NEUBERGER RPM370/1 Ua = 250v,Ug= -2V ,Ia=1.2mA=100%
And Ia1= 1.2 / 1.2 ; Ia2= 1.2 / 1.2 mA