Tube-number record
A59-11W
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BrandMullard
ClassTelevision Tube (CRT)
BaseCRT base (B8H)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeReinforced glass with metal rim band
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 Voltage150 V
H-C Voltage250 V
Audio Performance
Key Features
- Metal backed screen
- Reinforced envelope
- Safety screen not required
- Direct viewing
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grid Modulation | 20000 V | — | — | — | 0.25 mA |
| Cathode Modulation | 20000 V | — | — | — | 0.25 mA |
Application Notes
The metal band (B) must be connected to the chassis via a 2.2M Ohm resistor. X-ray shielding is advisable if operated above 20kV.
Datasheets
Datasheet: A59-11W.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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