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(medium microphonics) 12AT7 Brimar UK black plates

(medium microphonics) 12AT7 Brimar UK black plates "D" getter halo copper grid posts NOS 1955 (8.4/8.8ma)

$ 24.99

medium microphonic tube) 12AT7 Brimar UK black plates "D" getter halo tack welded to plate post, copper grid posts NOS 1955 in white box

8.4ma Gm=4500

8.8ma Gm=4900

 

tube is somewhat microphinic without tapping the tube

 

 

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