D7-221GH
0 Tubes in archive
BrandMullard
ClassInstrument Cathode-Ray Tube
Filament6.3V @ 95mA
Construction
Primary TypeMonoaccelerator oscilloscope tube
EnvelopeRectangular flat faced
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect by a.c. or d.c.; parallel supply
Absolute Maximum Ratings
Plate Voltage1000 V
H-C Voltage100 V
Audio Performance
Key Features
- 7 cm diagonal
- Rectangular flat faced
- Low heater power consumption
- Monoaccelerator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Quick Reference Data | 1000V | - | - | - | - |
Application Notes
Primarily intended for use in inexpensive oscilloscopes and monitoring devices.
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