HP AMPEREX BY PHILIPS HOLLAND ECC82 12AU7

TESTED DIGITAL TUBETESTER

DATA SHEET Ia=10.5 mA - S=2.2 mA/V

RESULTS TUBE 1  Ia= 11.0 - 10.6 - S=2.2 - 2.2 mA/V

  SHORT RIBBED GRAY PLATES, RING GETTER, STRONG VALUES

  MADE IN HEERLEN HOLLAND BY PHILIPS , MID 60's PRODUCTION