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(1) Tested National Union 35Z4GT Tube Date Code 5139 35Z4 GT Rectifier Tube (b)
Regular price $9.95 USDRegular price -
(1) Tested National Union 5Z3 Tube Hanging Filament Black Plates Date Code JN
Regular price $34.95 USDRegular price -
(1) Tested National Union 6SA7GT/G Tube Date Code DC Pentagrid Converter 6SA7
Regular price $8.95 USDRegular price -
(1) Tested National Union 6AE5G Tube Date Code DN Black Plate Low Mu Triode Tube
Regular price $14.95 USDRegular price -
(1) Tested National Union 25Z5 Tube Date Code LR Rectifier Doubler Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 70L7GT Tube Date Code 5226 Pentode Rectifier 70L7 GT
Regular price $7.95 USDRegular price -
(1) Tested National Union Type 35 Tube Engraved Base Date Code J Tetrode Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 12AL5 Tube with Box Date Code 5152 Double Diode Tube
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(1) Tested National Union 19C8 Tube Date Code 5139 Triple Diode Triode Tube
Regular price $12.95 USDRegular price -
(1) Tested National Union JAN CNU 1625 Tube VT-136 National Union 1625 Tube
Regular price $9.95 USDRegular price
