1 NOS Sylvania JAN CHS 7N7 Vacuum Tube 1950's Audio Twin Triode Box Style Plates

2 NOS Westinghouse 7N7 Vacuum Tubes Vintage Box-Style Plates Audio Twin Triodes

SYLVANIA 7N7 VINTAGE LOCTAL AUDIO TUBE - TESTED TV7 SUPERB

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(1) Tung-Sol 7N7 Vacuum tube Used Chrome Dome, Black Plates 1 Left Available

(2) Sylvania Philco 7N7 Tubes Black T Plates Tests Strong Amplitrex

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7N7 loctal transoceanic electron vacuum tubes 2 valve radio amplifier tested 7N7