ECC83 / 12AX7 Philips, Heerlen factory. Code . Foil Getter. Matched Pair. Strong. 1962 
Ua= 250v, Ug1= -2v, Uf= 12,6v
Pair - Ia = 1,3/1,3mA and 1,3/1,3 mA
Pair - Ia = 1,2/1,3 and 1,1/1,3 mA
Lot 2pcs
Selection by parameters on L3-3.
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