Tube-number record
D13-19BE, D13-19GH, D13-19GP
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BrandPhilips
ClassOscilloscope Tube
BaseDiheptal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialPlastic
SectionsSingle gun
Filament / Heater
Heater NotesIndirect heating, A.C. or D.C., parallel supply
Absolute Maximum Ratings
Plate Voltage2200 V
Plate Dissipation6 W
Grid 2 Voltage2200 V
Grid 1 Voltage-200 V
H-C Voltage200 V
Audio Performance
Key Features
- Flat face
- Post deflection acceleration
- Helical electrode
- Side contacts
- Metal-backed screen
- High sensitivity
- High frequency
- High writing-speed
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Operation | 10000 V | — | — | — | 0.01 mA |
Application Notes
The post-accelerator helix is connected between g7 and g6. The tube should not be supported by the base alone. Variation of the isolation shield voltage Vg6 serves to correct pincushion and barrel pattern distortion.
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