(!!) (Best Single) ECL86=6GW8 Amperex Bugle Boy Holland NOS 1966 (1.3ma and 40ma)

ECL86=6GW8 Amperex Bugle Boy Holland NOS 1966 good printing

1.3ma Gm=1700 Triode 

40ma Gm=10,300 Pentode 

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