1 low noise tube) 5687WA Tungsol bronze plates “”O”” getter halo used/very good 1961 – faded printing in white box
1 section) 33.4ma Gm=10,200
1 section) 34.8ma Gm=10,600
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth


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