Amperex 12AX7/ECC83 Large O-Getter 1960 Heerlen Holland Not Strong
Made in December 1960 in Heerlen Holland. Labeled as "Harman Kardon by AMPEREX". Date Code: I63 Delta 0L3. Made in Holland. Large O-Getter. ____ ______. Tested in my preamplifier to make sure working as intended with no issues at all.