(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (34.5/36.5ma)

1 slightly 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) 34.5ma Gm=12,200

1 section) 36.5ma Gm=12,600

good as driver tube or output buffer tube