Tube-number record
D 12-140 GH/119
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BrandValvo
ClassOscilloscope Tube
BaseCRT base (B12 family)
Filament6.3 V @ 100 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass
Sections1
Filament / Heater
MaterialSparheizkatode
Warm-up Time7s
Heater NotesIndirectly heated, parallel supply
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage2500 V
Grid 1 Voltage200 V
H-C Voltage125 V
Audio Performance
Key Features
- Internal graticule
- Metal-backed screen
- High brightness
- Compact length
- Curved mesh electrode
- Side deflection connections
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 10kV Anode | 10000 V | — | — | — | 0.01 mA |
| 16.5kV Anode | 16500 V | — | — | — | 0.01 mA |
Application Notes
Designed for compact oscilloscopes with bandwidth up to 150 MHz. Features an internal correction coil for image rotation.
Datasheets
Datasheet: D12-140GH119.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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