Siemens E88CC Valvo PCC88 AEG ECC83 Paar Philips Electro Philips 6CG7 Mazda 12AT7 12AX7 China Siemens ECC83 Telefunken Amperex 6DJ8 Ultron ECC82 Valvo ECC82 GE 5751WA Paar Valvo ECC83 AEG E88CC Philips TAD Tube Amp Ediswan ECC81 National 12AX7A 5814A E82CC Mullard E88CC TAD Tube Amp National 6922 Siemens ECC82 Ei ECC82 Paar Philips ECC86 AEG ECC83 Philips E88CC Haltron ECC82 Mal Valve ECC83 PrimaLuna 12AU7 RAM 6DJ8 Telefunken E88CC Röhren SEL Lorenz Ei ECC83 Valvo ECC86 Valvo PCC189 Philips Philips ECG Tungsram ECC82 Sovtek 6SN7GT Tesla E83CC Standard Brand Electro