Mullard Blackburn

12AX7 ECC83 Valve/Tube

Short Ladder Plates, Halo Getter

I61 B3I5 Blackburn Coded

Tested Good on Avo VCM 163..

Ia 1.3/1.05 ~ Gm 1.6/1.5

100% Book Spec = Ia 1.2 - Gm 1.6

Supplied in White Box

 As Per Photo

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