3Q5GT/G Beam Power Tube. A vacuum tube with bakelite socket by Ken-Rad #18246 | M-Ware
NOS NIB Date Matched Pair Ken-Rad JAN-CKR-3Q5GT / VT-221 Vacuum Tubes - VIVA TUBES
Tube/valve 3Q5GT Haltron - Jukebox Revival
NOS tubes National 3Q5GT = VT-221 = CV819 = 3Q5 = 3Q5GT/G = DL33 | eBay
Sylvania 3Q5GT NOS NIB Power Output Tube Valve Rohre | eBay
NEW CBS 3Q5GT TUBE NOS TESTED Multtiples Available | eBay
Request for 3Q5GT Single Headphone amp schematic | diyAudio
ElectronTubeStore.com
3Q5GT Beam Power Amplifier Tube. Designed for the output stage of a 3 way receiver. MFR: RCA, Raytheon. SKU: 3Q5GT. New old stock. No longer available for export.