Tube type list
New original 6J4P Amplifiers Vacuum Tube Replace 6m4 6AC7 valve Electronic Tube 2PCS - AliExpress
6AC7, Tube 6AC7; Röhre 6AC7 ID2684, Vacuum Pentode | Radiomuseum.org
Improving your receiver with a frame-grid R.F. pentode
4pcs 6J4 Vacuum tube (~6AC7 ~6AJ7 ~1649 ~1682 ~6134 ~6AB7) Metal Base NOS VALVE | eBay
New original 6J4P Amplifiers Vacuum Tube Replace 6m4 6AC7 valve Electronic Tube 2PCS - AliExpress
Download - Vacuum-Tube-Shop
SM5CBW - Tubedata
Electron tube 6J4 (6Ж4) = 6AC7 = 1852 = 6F10 = 1511 = 6Ж4-B - RETROSTORE.EU
6AC7, Tube 6AC7; Röhre 6AC7 ID2684, Vacuum Pentode | Radiomuseum.org
AmplitudeModulation
Tubes-Store.com → Other tubes → 6J8 / 6SJ7 tube
List of vacuum tubes - Wikipedia
SM5CBW - Tubedata
Vacuum Tubes http://www.vacuum-tube-shop.com/ Electron Tubes ...
4pcs 6J4 Vacuum tube (~6AC7 ~6AJ7 ~1649 ~1682 ~6134 ~6AB7) Metal Base NOS VALVE | eBay
RCA 5879 Phono Preamp | diyAudio
AmplitudeModulation
Vacuum Tube: Most Up-to-Date Encyclopedia, News & Reviews
New Soviet Union 6Ж4 Electronic tube can replace Nanjing 6J4P 6Ж4C 6AC7 Soft and beautiful sound quality - AliExpress
SM5CBW - Tubedata
