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(1) Tested National Union 35Z3 Tube with Box Code LR Rectifier Vacuum Tube
Regular price $13.95 USDRegular price -
(1) Tested National Union 6SF5GT Tube with Box Code KU 6SF5 Triode Vacuum Tube
Regular price $13.95 USDRegular price -
(1) Tested Very Strong National Union 39/44 Tube with Box Code GN Pentode Tube
Regular price $11.95 USDRegular price -
(1) Tested National Union 7Q7 Tube with Box Code JC Pentagrid Converter Loctal
Regular price $9.95 USDRegular price -
(1) Tested National Union 7A8 Tube with Box Code LU Loctal Octode Converter (b)
Regular price $11.95 USDRegular price -
Tested Matched Pair National Union 7A8 Tubes and Boxes Codes LU Loctal Tubes (a)
Regular price $28.95 USDRegular price -
(1) Tested National Union 6ZY5G Tube Code PR Full Wave Vacuum Rectifier Tube
Regular price $14.95 USDRegular price -
(1) Tested National Union Type 38 Tube Code 5213 Pentode Output Tube (b)
Regular price $14.95 USDRegular price -
(1) Tested National Union 12A5 Tube Date Code DC Power Amplifier Pentode Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union Type 43 Tube with Box Code JC Power Pentode Tube
Regular price $17.95 USDRegular price -
(1) Tested National Union Type 38 Tube Code 5213 Audio Output Pentode (a)
Regular price $14.95 USDRegular price -
(1) Tested Strong National Union Type 01A Tube Gold Glass Shouldered ST Code Y
Regular price $124.95 USDRegular price -
(1) Tested National Union U.S. Navy CNU 7H7 Tube Mil Spec Loctal Tube Pentode
Regular price $9.95 USDRegular price -
(1) Tested National Union Type 24A Tube Date Code J Engraved Base Screen Grid Tube
Regular price $11.95 USDRegular price -
Tested Matched Pair National Union Type 20 Tubes (UX120 Equiv.) Engraved Bases
Regular price $184.95 USDRegular price -
(1) Tested National Union 7AD7 Tube Code 5113 Power Pentode Vacuum Tube (b)
Regular price $7.95 USDRegular price -
(1) Tested National Union 6SF7 Tube Code PN Diode Super Control Pentode Tube
Regular price $8.95 USDRegular price -
(1) Tested National Union 6D6 Tube Remote Cutoff Pentode Vacuum Tube
Regular price $11.95 USDRegular price -
(1) Tested National Union 5W4 Tube Date Code LR Full Wave Rectifier Vacuum Tube
Regular price $22.95 USDRegular price -
(1) Tested National Union NY- 227 Type 27 Tube Engraved Base Foil Getter Globe
Regular price $22.95 USDRegular price -
(1) Tested National Union Type 80 Tube Ribbed Plates Hanging Filament Code E
Regular price $38.95 USDRegular price -
Tested Matched Pair National Union Type 24A Tubes Engraved Bases Codes J
Regular price $32.95 USDRegular price -
(1) Tested National Union NX 201A Tube Type 01A Tube Engraved Base Globe Tube
Regular price $32.95 USDRegular price -
(1) Tested National Union JAN CNU 6X5GT Tube Code HC 6X5 GT Full Wave Rectifier
Regular price $9.95 USDRegular price -
(1) Tested National Union 7Y4 Tube with Box Code HC Loctal Tube Rectifier Tube
Regular price $10.95 USDRegular price -
(1) Tested Balanced National Union 25Z6GT Tube with Box Code 5252 Rectifier
Regular price $11.95 USDRegular price -
(1) Tested National Union Type 27 Tube with Engraved Base Code J Triode Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 12BF6 Tube with Box Code 5326 Double Diode Triode
Regular price $9.95 USDRegular price
