(!!) (Single) GB-6SL7WGT Sylvania Gold Brand brown base round black plates “”O”” getter NOS 1950”s (1.7/1.7ma) 1% section balance Title: GB-6SL7WGT Sylvania NOS 1950”s

1 low noise tube) GB-6SL7WGT Sylvania Gold Brand brown base round black plates “”O”” getter NOS 1950”s in white box

1.7ma Gm=1300

1.7ma Gm=1300

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