Sylvania Technical Manual 1949
RADIO VALVES 6A3 TO 6ZY5 – Page 3 – MULLARD MAGIC
Nostalgia Air: Tube Substitution for 6C4
6C4 / 6C4WA / 6100 NOS/USA
Sylvania Technical Manual 1959
Untitled
6C4, Tube 6C4; Röhre 6C4 ID2842, Triode, vacuum | Radiomuseum.org
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6C4, Tube 6C4; Röhre 6C4 ID2842, Triode, vacuum | Radiomuseum.org
6C4, Tube 6C4; Röhre 6C4 ID2842, Triode, vacuum | Radiomuseum.org
