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(!) (#1 12AT7WA from 1950's) 12AT7WA Sylvania black plates triple mica

(!) (#1 12AT7WA from 1950's) 12AT7WA Sylvania black plates triple mica "D" getter used/good 1950's (6.2/7.0ma)

$ 17.99

1 low noise tube) 12AT7WA Sylvania black plates triple mica "D" getter used/good 1950's in white box

1 section) 6.2ma Gm=4100

1 section) 7.0ma Gm=4500

 

Good used Ma range 6-8ma

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