A47-26W/R
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BrandMullard
ClassTelevision Tube (CRT)
BaseRing Trap Base
Filament6.3V @ 300mA
Construction
Primary TypeMonochrome CRT
EnvelopeReinforced glass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesSuitable for series or parallel operation. Surge voltage must not exceed 9.5V r.m.s.
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage700 V
Grid 1 Voltage-400 V
H-C Voltage250 V
Audio Performance
Key Features
- Metal backed screen
- Reinforced envelope
- Separate safety screen not required
- Ring trap base
- Push-through presentation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grid Modulation (V_a1=400V) | 20000V | - | - | - | - |
| Grid Modulation (V_a1=500V) | 20000V | - | - | - | - |
Application Notes
X-ray shielding is advisable when operated above 20kV. Metal band (B) should be connected directly to chassis in AC receivers.
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