(!) (Best Value Single) 5687WA Sylvania JAN used/good faded printing 1970's (31/35.8ma)
$ 19.99
1 low noise tube) 5687WA Sylvania JAN used/good faded printing 1970's
31.0ma Gm=10,150
35.8ma Gm=10,900
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
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 (Best Value Single) 5687WA Sylvania JAN used/good faded printing 1970's (31/35.8ma) "Pin It")