Tube-number record
DL70
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BrandMullard
ClassV.H.F. Output Pentode
BaseB8D / B8F
Construction
Primary TypePentode
EnvelopeSubminiature
SectionsSingle
Filament / Heater
MaterialDirectly Heated
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation1 W
Grid 2 Voltage150 V
Grid 1 Voltage-25 V
Cathode Current13 mA
Audio Performance
Typical THD10%
Power Output0.5 W
Key Features
- Subminiature
- V.H.F. Applications
- Battery-operated
- Push-to-talk equipment
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 135 V | — | 150000 | — | 7.55 mA |
| Class C Telegraphy R.F. Oscillator | 150 V | — | — | — | 10 mA |
| Class AB Push-Pull (Two Valves) | 150 V | — | — | — |
Datasheets
Datasheet: DL70.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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