Tube-number record
A 59-12 W/2
0 archive entries
A 59-12 W/2 is a tube type in the TubeDatabase archive (class: Television Picture Tube). Recorded specifications: brand Telefunken, construction Display / CRT, socket CRT base (B7 family), and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandTelefunken
ClassTelevision Picture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass
SectionsSingle
Filament / Heater
Heater NotesControlled warming-up time; Serial or parallel heating
Absolute Maximum Ratings
Plate Voltage18000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 16000 V | — | — | — | — |
Application Notes
For fokus of the whole screen, the voltage to be set is dependent on the deflecting system utilized and operating conditions. Relative definition of the spot is largely independent of mains voltage fluctuations with electrostatic focusing.
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