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(microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (31/31ma)
(microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (31/31ma)
$ 17.99
1 microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 in white box, reddish-orange printing, from factory bulk pack of 100
1 section) 31ma Gm=9800
1 section) 31ma Gm=10,000
good as driver tube or output buffer tube
See more: vacuum tube
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 JRP-5687 Raytheon NOS black plates D getter NOS 1957 (31/31ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_6cf05802-0f3a-44e9-a48e-232985c2f680.jpg?v=1571438829){kind=link}
 JRP-5687 Raytheon NOS black plates D getter NOS 1957 (31/31ma) "Pin It")