MATCHED QUAD 6N8S (6H8C) FOTON  Tubes 

Double Triode

RIBBED Anodes

Up for sale lot of MATCHED QUAD 6N8S (6H8C) FOTON tubes.

Made in plant FOTON 1954-56

Tested with tube tester L3-3, as well as on the vacuum tube amplifier.

Сonditions for test:

Uf=6.3V

Ua=250V

Ug1=-8V

Ug2=250V

Results for Ia1/Ia2: 

MQ tubes

9.0/7.5 mA

7.5/8.0 mA 

9.5/7.5 mA 

7.5/8.5 mA 

I ship with tracking number.
Items are well packed.
I always answer all questions.