Röhren
Tubes
Lampes
Tubos
Pentode (5)
Niederfrequenzverstärkung / Audio frequency amplification / Gain audiofréquence
Noval- Miniatur 9-Stift B9A / American Small Button 9-Pin B9A
Uf = 6,3 V; If = 0,2 A; ~ =
Ua = 250 V; Ia = 3 mA
Ug1 = - 2,2 V; Ug2 = 140 V; Ug3 = 0 V
Weida 1041
Valvo
Grundig TK145
Valvo
Imperial 609T
Siemens 60%
Saba Meersburg A7
Telefunken 60%
Saba Freiburg A100
Telefunken 60%
Saba Freiburg A100
Valvo 0%
Saba Wuerttemberg
Telefunken 55%
Lager EF86
Valvo 60%
Lager EF86