Röhren
Tubes
Lampes
Tubos
Triode-Heptode (3 + 7)
Oszillator, Mischer und Regelung / Frequency converter and controlling / Changeuse de fréquence et commande
Noval 9-Stift B9A / Noval B9A
Uf = 6,3 V; If = 0,3 A; ~ =
Triode: Ua = 250 V; Ia = 4,5 mA
Heptode; Ua = 250 V; Ia = 3,3 mA
??? +
Power-Tone 536
Mazda 50%
SNR Constellation 56