NATIONAL UNION 5U4G TUBE DUAL STEEL CENTER RODS FULL WAVE RECTIFIER NOS NIB

1 x NOS KEN-RAD 5Z3 US Made Vacuum Black Plates Rectifier Radio Valve Tube

Lot of (4) Vintage Type 5Z4 Rectifier Vacuum Tubes - Tested

RCA Rare 5Z3 Rectifier Vacuum Antique Radio Tube Tested Strong Vintage Radiotron

NOS Telefunken RGN2004 KL-75301 Test V.GOOD Wehrmacht 1944 Rectifier Vacuum Tube

(1) Tested National Union 25Z5 Tube Date Code LR Rectifier Doubler Tube

GREAT Pair NATIONAL UNION Engraved Base Type 80 RECTIFIER Vacuum Tubes 12.9326

NATIONAL BRAND TYPE 85 DUAL DIODE/TRIODE VACUUM TUBE FOR OLD RADIOS BOXED TESTED