(!) (SINGLE) 5687 Raytheon NOS black plates "U" getter 1956 (40ma/32ma)
$ 59.99
1 low noise tube with tilted glass) 5687 Raytheon NOS black plates "U" getter 1956 in white box
1 section) 40ma Gm=13,000
1 section) 32ma Gm=11,000
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 (SINGLE) 5687 Raytheon NOS black plates "U" getter 1956 (40ma/32ma) "Pin It")
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