Tube-number record
DL620
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BrandMullard
ClassSubminiature Output Pentode
BaseSubminiature
Construction
Primary TypePentode
EnvelopeSubminiature
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage90 V
Grid 2 Voltage90 V
Cathode Current5 mA
Audio Performance
Typical THD10%
Power Output0.11 W
Key Features
- Subminiature
- Direct current operation
- Battery operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single Valve Class A (Condition 1) | 45 V | — | — | — | 1.8 mA |
| Single Valve Class A (Condition 2) | 67.5 V | 650 | 110000 | 5 | 3.25 mA |
| Single Valve Class A (Condition 3) | 90 V | — | — | — |
Application Notes
Direct soldered connections to the leads must be at least 5mm from the seal. Any bending of the valve leads must be at least 1.5mm from the seal.
Datasheets
Datasheet: DL620.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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