Vintage NOS Pair (2) of matched Siemens E84L / 7320 Tubes

Premium long life version of an EL84. Higher voltage ratings. Direct replacement for EL84/6BQ5 and 7189 (not 7189A) (450V Anode Voltage with 13.5W Anode Dissipation vs.EL84 (300V/12W) or 7189 (400V/12W).

Test Results:

Tube 1:  82 = 4,100 uMhos Transconductance (Gm)  at 18.5 mA (Ia =Anode Plate Current)

Tube 2:  83 = 4,150 uMhos Transconductance (Gm)  at 19.0 mA (Ia =Anode Plate Current)

-Test Strong, NO Shorts, No Leakage, No Gas, No Micro-Phonics detected

-Siemens-Halske in Munich, Germany.

- Original boxes included. ..

Minimum good on TV7: 50 = 2,500 uMhos. NOS Range 77+.

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 WELL FOR SAFE SHIPPING, Many years of shipping Experience with FRAGILE Vacuum Tubes

and Vintage Electronics.