5963 RCA Hewlett Packard gray plates used/good 1960 (8.0/9.2ma)
$ 5.99
1 low noise tube) 5963 RCA Hewlett Packard gray plates used/good 1960
8.0ma Gm=1900
9.2ma Gm=2100
(5963=computer rated 12AU7)
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