RCA 2A3 KR Audio KT88 Sovtek 6550 WA Mullard EL34 General Golden Dragon Philips ECG Golden Dragon Svetlana 6550 C Hoges EL84 6CA7 EL34 Gold Lion Electron EL-34 GE 6550 A Hoges EL12 375 RSD EL34 Shuguang 300B S RSD EL84 Ruby Tubes Svetlana 6H13C Audio Research Welter 6550 A-S The Fisher 7189 Welter EL34-S 5881 gematchtes Sovtek KT88 Audio Research Telefunken EL84 Orion EL34 6CA7 Röhren 6n3C-E Ruby Tubes KT88 Fullmusic 300B Audio Research AEG EL34 Valvo PL36 Tung-Sol EL34 B Edicron EL84 Electro JJ Electronic TAD Tube Amp Hoges EL12 375 Siemens EL84 Orion EL34 6CA7 McIntosh KT88 6550 Röhre Orion EL34 6CA7