New RCA 3S4 electronic tube replacement for 3V4 2P2 2P3 biliary power amplifier ear amplifier - AliExpress
3V4 TUBE -Experience Pure Analog Sound with our Premium Vacuum Tube for High-Fidelity Audio Systems – Big River Hardware
3V4 RCA NOS 1965 (100/60)
3V4 Power Amplifier Pentode Tube. Designed for use in the power output stage of compact, battery operated equipment. MFR: RCA, Zenith, Sylvania, Raytheon. SKU: 3V4. New old stock. No longer available for
3V4 by GENERAL ELECTRIC - Buy or Repair at Radwell - Radwell.com
Tung Sol 3V4 Vacuum Tube for Zenith Transoceanic Radios - Etsy