Tube-number record
1400A
0 archive entries
1400A is a tube type in the TubeDatabase archive (class: Instrument Cathode Ray Tube). Recorded specifications: brand M-O Valve Co. Ltd., construction Display / CRT, socket CRT base (B12 family), and maximum plate voltage 7000 V. The archive does not yet hold a photographed example of this type.
BrandM-O Valve Co. Ltd.
ClassInstrument Cathode Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 0.3 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular
SectionsSingle gun
Filament / Heater
Absolute Maximum Ratings
Plate Voltage7000 V
Grid 2 Voltage1750 V
Grid 1 Voltage-200 V
H-C Voltage150 V
Audio Performance
Key Features
- Spiral p.d.a.
- Rectangular flat face
- Single gun
- Full 8 x 10 cm display
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Oscilloscope | 4000 V | — | — | — | — |
Application Notes
The tube may be mounted in any position but should not be supported by base alone. A suitable magnetic shield is recommended.
Datasheets
Datasheet: 1400A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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