One Strong 1957 Amperex Foil Getter ECC82/12AU7 Vacuum Tube
Test Results: NO Shorts, No Leakage, No Gas, No Micro-Phonics detected
Plate 1: 77 = 1925 uMhos Transconductance (Gm) at 7.2 mA (Ia =Anode Plate Current)
Plate 2: 84 = 2100 uMhos Transconductance (Gm) at 7.9 mA (Ia =Anode Plate Current)
- Date Code: K62 <7A (1957)
- Foil Getter
- Made in Holland
- Reproduction Box
For Reference: The Minimum good value for a ECC82/12AU7 tube tested
on all TV7 versions is 56/56 = 1,400/1,400 uMhos Gm 'Bogey':
Factory Data Sheet NOS when new 88/88 = 2,200/2,200 (μ℧ ) uMhos
Transconductance (Gm) at 10.5/10.5mA Anode Plate Current Dissipation @ 250V. TV7's test @ 150V.
Our Test Set: Dan Nelson restored, upgraded and calibrated, TV7A/U with Digital Meter reading
Transconductance in uMhos (Gm) and mA (Anode Plate Current).
WE
PACK VERY WELL FOR SAFE SHIPPING WORLDWIDE. WE SHIP FAST. MANY YEARS
EXPERIENCE SHIPPING FRAGILE TUBES AND VINTAGE ELECTRONICS.