Substitute for a 6973 tube: 6EM5? | Page 2 | The Gear Page
6973, Tube 6973; Röhre 6973 ID6116, Beam Power Tube | Radiomuseum.org
AMPLIFICATEURS AUDIO HIFI A TUBES - EUROPATUBES / franceradionumérique.com
6V6 - Wikipedia
RCA 6973 Tube Adapter Sockets w/ 3 Pairs NOS Equivalent Tall Bottle Tubes for Valco Supro Magnatone | Reverb France
6973 VS 6CZ5 substitute | diyAudio
6973's in an EL84 amp? | The Gear Page
6973 SYLVANIA 6CZ5 TETRODE VALVE AUDIO AMPLIFICATION JUKEBOX NIB
Power tubes
Current Tested Electro-Harmonix 6973 Vacuum Tube for sale online | eBay
6973 | 6CZ5 Guaranteed Tubes for Sale - VivaTubes.com
6973 | 6CZ5 Guaranteed Tubes for Sale - VivaTubes.com
Evolution of the 6973 tube - Music Electronics Forum
7199:RCA Application Notes
RCA 6973 Tube Adapter Sockets w/ 3 Pairs NOS Equivalent Tall Bottle Tubes for Valco Supro Magnatone | Reverb France
Electro-Harmonix 6973-EH Power Tube | Sweetwater
Converting 6973 power tubes to 6CZ5's on a Supro model 24 | Telecaster Guitar Forum
6973 power tubes and their screen voltage
Current Tested Electro-Harmonix 6973 Vacuum Tube for sale online | eBay
6973 | 6CZ5 Guaranteed Tubes for Sale - VivaTubes.com
6973, Tube 6973; Röhre 6973 ID6116, Beam Power Tube | Radiomuseum.org
6973 - 6CZ5 Tube Substitution
RCA 6973 Tube Adapter Sockets w/ 3 Pairs NOS Equivalent Tall Bottle Tubes for Valco Supro Magnatone | Reverb
