Two tubes original ECC83 from Telefunken
With the diamond <> at the botton
Plate style/colour: ribbed, grey
Getter: Halo
Long Plates (17 mm)
Perfect condition
NOS
The tubes tested Very Strong (like NOS/New) on mutual conductance tube tester Taylor 45C:
2,28 mA/V | 2,32 mA/V (Gm)
2,30 mA/V | 2,33 mA/V (Gm)
(New is 2,00 mA/V)
Perfect Matched Pair