(!!!!) (Gold Brand Single) GB-6SL7WGT Sylvania brown base NOS 1960 era (1.6/1.5ma) Title: GB-6SL7WGT Sylvania Gold Brand NOS

1 Low Noise tube) GB-6SL7WGT Sylvania brown base “”O”” getter NOS 1960 era

1.6ma Gm=1400

1.5ma Gm=1400

Good Ma = 2-3ma

Good Gm = 1600

– low noise

– detailed

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