
Tube-number record
A56-120X
0 archive entries
A56-120X is a tube type in the TubeDatabase archive (class: Colour Television Picture Tube). Recorded specifications: construction Display / CRT, socket CRT base (B12 family), and maximum plate voltage 27500 V. The archive does not yet hold a photographed example of this type.
ClassColour Television Picture Tube
BaseCRT base (B12 family)
Filament6.3 V @ 900 mA
Construction
Primary TypeDisplay / CRT
EnvelopeReinforced glass
SectionsTriple-gun
Filament / Heater
Heater NotesRegulated supply recommended for maximum cathode life.
Absolute Maximum Ratings
Plate Voltage27500 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 25000 V | — | — | — | 0.8 mA |
Application Notes
Magnetic shielding must be provided to minimize extraneous magnetic fields; shielding should be 0.5mm minimum thickness cold-rolled mild steel.
Datasheets
Datasheet: A56-120X.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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