Tube-number record
A47-14W
0 archive entries
A47-14W is a tube type in the TubeDatabase archive (class: Television Cathode Ray Tube). Recorded specifications: brand Mullard, construction Display / CRT, base Glass, socket CRT base (B8H), and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassTelevision Cathode Ray Tube
BaseCRT base (B8H)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular glass
Base MaterialGlass
SectionsSingle gun
Filament / Heater
Heater NotesSuitable for series or parallel operation; surge heater voltage must not exceed 9.5V r.m.s.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation - Grid Modulation | 20000 V | — | — | — | 0.25 mA |
| Typical Operation - Cathode Modulation | 20000 V | — | — | — | 0.25 mA |
Application Notes
X-ray shielding is advisable if operated above 20kV. The d.c. value of bias must not allow grid to become positive with respect to cathode except during switch on/off. Pin protector should remain until socket installation.
Datasheets
Datasheet: A47-14W.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results