(!!) JRC-12AU7 RCA NOS long gray plates mid-1950's "D" getter (9/11.6ma)
$64.99
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1 low noise tube) JRC-12AU7 RCA NOS long gray plates mid-1950's "D" getter 9ma Gm=2000 11.6ma Gm=2100 mil-grade 12AU7 Good mA = 8-10ma Good Gm range 1800-2200
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