Ultra Rare New in Box ...

Old Version 50th ( 1958 )

matched Quad (4.)

Mullard ECC83 = 12AX7 

*** f91 Code ***

Audio HiFi Tube NOS testet

Roe-V-10 Testet:

all tubes > 1,5/1,5 mA = NEW strong

1,2/1,2 mA = 100%

NOS > NEW >

Take the Best !

Sie Bieten auf 4. Stück >> It offering on 4. st piece

see they on my ** me side ** for more info > ROE-TEST