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(!!!) (Best SIngle 1950's) 12AT7 Brimar UK black plates "O" getter halo NOS late 1950's (11.6/12.8ma)

$ 89.99

1 low noise tube) 12AT7 Brimar UK black plates "O" getter halo NOS late 1950's

11.6ma Gm=5900

12.8ma Gm=6300

 

 

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