Philips ECG
RFT EL34
Telefunken
ECC82 Röhre
Hoges EL12 375
Welter EL34
Golden Dragon
Audio Research
Valvo PCC88
Philips 6CG7
Philips E88CC
E88CC Röhren
Shuguang 300B
Svetlana 6H13C
General
RSD EL84
Philips ECG
Golden Dragon
Siemens RS 1029
The Fisher 7189
Philips ECG
Siemens EBL1
Siemens ECC82
Philips 12AU7
Svetlana 6550 C
RSD EL34
GE 6550 A
Sovtek 6922
Orion EL34 6CA7
Electro
National 6922
Valvo ECC81
AEG EL34
Shuguang 300B S
JJ Electronic
General
Siemens E88CC
Gold Aero 6922
Sovtek 5AR4
EAT 300B Röhren
Welter EL34-S
KR Audio KT88
Philips
ITT Lorenz
Haltron ECC82
Ultron ECC82
Angeschaut