E-40 Serie (6.3 V Heater)

- Heptode / Double DiodeNever used / old productionAll tu..
Never used / old productionAll tubes testet with uTracer o..
- Heptode / Double DiodeNever used / old productionAll tu..
Power Pentode for TelevisionNever used / old productionAll..
Never used / old productionAll tubes testet with uTracer o..
Never used / old productionAll tubes testet with uTracer o..
Never used / old productionAll tubes testet with uTracer o..
Power Pentode for TelevisionNever used / old productionAll..
Power Pentode for TelevisionNever used / old productionAll..