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Preamp tubes

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(!!!!) (microphonic singles) JAN-5687WB Tungsol branded Raytheon black plates

(!!!!) (microphonic singles) JAN-5687WB Tungsol branded Raytheon black plates "U" getter NOS 1950's (3 in stock)

$ 9.99
(!!!) (slightly microphonic) 5687 Tungsol black plates

(!!!) (slightly microphonic) 5687 Tungsol black plates "U" getter halo branded GE NOS 1950's (36/40ma)

$ 29.99
(!!!) (Best Single) CK5687WA Raytheon black plates

(!!!) (Best Single) CK5687WA Raytheon black plates "O" getter like new 1960 (35/38ma)

$ 59.99
(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates

(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's (32.5/39ma)

$ 34.99
(!!) (Best Value Single 1961) 5687WA Tungsol bronze plates

(!!) (Best Value Single 1961) 5687WA Tungsol bronze plates "O" getter halo used/very good 1961 (33.4/34.8ma)

$ 34.99
(!!) (Best Single) 5687 Tungsol rebranded CBS black plates

(!!) (Best Single) 5687 Tungsol rebranded CBS black plates "U" getter NOS 1950's (38/48ma)

$ 79.99
(!!) (Best Value Single) JAN-5687WA Raytheon bronze plates used/tests like new 1969 (41.5/43.5ma) (High Ma and Gm)

(!!) (Best Value Single) JAN-5687WA Raytheon bronze plates used/tests like new 1969 (41.5/43.5ma) (High Ma and Gm)

$ 39.99
(!!) (Good Value Single) 5687 Tungsol Hewlett Packard bronze plates

(!!) (Good Value Single) 5687 Tungsol Hewlett Packard bronze plates "O" getter like new 1960 (32.5/33.7ma)

$ 59.99
(!!) JAN-CRP-5687WA Raytheon black plates

(!!) JAN-CRP-5687WA Raytheon black plates "O" getter halo 1962 used/tests like new (44.5/39ma)

$ 39.99
(!!) JTL-5687WA Tungsol bronze plates

(!!) JTL-5687WA Tungsol bronze plates "O" getter used/good 1958 (30/30.5ma)

$ 29.99
(!) 5687 RCA black plates used/good 1961 (33/33.5ma)

(!) 5687 RCA black plates used/good 1961 (33/33.5ma)

$ 29.99
(!!) (Best Value Single) JAN-CRP-5687 Raytheon black plates used/very good around 1960 (33.5/37.6ma)

(!!) (Best Value Single) JAN-CRP-5687 Raytheon black plates used/very good around 1960 (33.5/37.6ma)

$ 32.99
(!!!!) (Good Value Pair) JAN-5687WB GE used/good 1970 era (29.5/31ma and 29.2/29.6ma)

(!!!!) (Good Value Pair) JAN-5687WB GE used/good 1970 era (29.5/31ma and 29.2/29.6ma)

$ 39.99
(microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (36/41ma)

(microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (36/41ma)

$ 17.99
(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
(!) (microphonic single tube) E182CC=7119 Philips SQ Holland NOS

(!) (microphonic single tube) E182CC=7119 Philips SQ Holland NOS "O" getter halo 1963 (39.0ma/39.2ma)

$ 49.99
(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (40.5/45.5ma)

(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (40.5/45.5ma)

$ 29.99
(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (34.5/36.5ma)

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

$ 27.99
(slightly microphonic - good value) 5687 Raytheon black plates NOS

(slightly microphonic - good value) 5687 Raytheon black plates NOS "square" getter halo 1950's (37/39ma) (strong Ma and Gm)

$ 24.99
(!!!) (Best Single) JTL-5687 Tungsol bronze plates

(!!!) (Best Single) JTL-5687 Tungsol bronze plates "U" getter halo NOS 1959 (39/40ma) 1-3% section balance

$ 89.99
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