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(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 JAN CNU 6SK7GT/G Tube VT-117-A Code HN 6SK7 Pentode
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 Tube
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 Date Code 5326 Double Diode Triode Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 2C26 Tube Date Code HU Top Caps Brown Base Triode Tube
Regular price $12.95 USDRegular price -
(1) Tested National Union 6Q7GT Tube Date Code KU Twin Diode High Mu Triode Tube
Regular price $14.95 USDRegular price -
(1) Tested National Union 7AD7 Tube with Box Code 5113 Power Pentode Loktal (a)
Regular price $9.95 USDRegular price -
(1) Tested National Union 6BC5 Tube Date Code 533 Sharp Cutoff Pentode Tube
Regular price $6.95 USDRegular price -
(1) Tested National Union 6D6 Tube Code NU Remote Cutoff Pentode Vacuum Tube
Regular price $11.95 USDRegular price -
(1) Tested National Union JAN 2X2/879 Tube VT-119 Date Code GC 2X2 Tube 879 Tube
Regular price $11.95 USDRegular price -
(1) Tested National Union JAN CNU 5Z3 Tube Hanging Filament Date Code HN
Regular price $34.95 USDRegular price -
(1) Tested National Union 7B5 Tube Loctal Tube Power Pentode Loktal Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 6N7 Tube Date Code NN Twin Power Triode Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 6AR5 Tube Date Code 5139 6AR5 Power Pentode Tube
Regular price $12.95 USDRegular price -
(1) Tested National Union 6CD6G Tube Date Code 5113 6CD6 G Beam Power Tube
Regular price $9.95 USDRegular price -
(1) Tested National Union 35Z4GT Tube Date Code 5139 35Z4 GT Rectifier Tube (a)
Regular price $9.95 USDRegular price
