Philips V.A.L. 300B KT88 Röhre AEG EL34 Philips ECG RSD EL34 KT88 Röhre Sovtek 12AX7WB Precision EL 34 GE 6550 A Fullmusic 300B Orion EL34 6CA7 Valvo PL36 TAD Tube Amp Orion EL34 6CA7 Shuguang 300B S Edicron EL84 EL34 Röhren Hoges EL12 375 Mullard EL34 RFT EL34 Tesla E34 L General McIntosh KT88 Tube Audio Bonn Welter 6550 A-S Telefunken EL84 Audio Research Audio Research EL34 Röhre Golden Dragon Sovtek 6550 WA Sovtek EL34G Welter EL34-S Svetlana EL34 Electro Svetlana EL34 RSD EL84 Audio Research Sovtek EL34G RCA 5881 Golden Dragon Pope EL34 Röhre TAD Tube Amp Siemens EL84 Fullmusic 300B