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(!) 12BH7A GE gray oval plates

(!) 12BH7A GE gray oval plates "O" getter halo used/good 1964 (7.2ma/8.5ma)

$ 24.99

1 low noise tube) 12BH7A GE gray oval plates "O" getter halo used/good 1964 (KT) date code

7.2ma Gm=2400

8.5ma Gm=2500

 


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