TELEFUNKEN ECC82 / 12AU7TESTED HICKOK TV-7/UMINIMUM 56/56RESULTS TUBE 1 = 114/115 - CODE B3103928 DIAMOND ◊ BETWEEN THE PINS MADE IN BERLIN GERMANY SEPTEMBER 13 YEAR 1963LONG RIBBED SMOOTH PLATES, RING GETTER
TELEFUNKEN ECC82 / 12AU7
TESTED HICKOK TV-7/U
MINIMUM 56/56
RESULTS TUBE 1 = 114/115 - CODE B3103928
DIAMOND ◊ BETWEEN THE PINS
MADE IN BERLIN GERMANY SEPTEMBER 13 YEAR 1963
LONG RIBBED SMOOTH PLATES, RING GETTER