DL 72
0 Tubes in archive
BrandPHILIPS
ClassOutput Pentode
BaseLead Wires
Construction
Primary TypePentode
EnvelopeSubminiature
SectionsSingle
Filament / Heater
MaterialDirect DC
Absolute Maximum Ratings
Plate Voltage45 V
Plate Dissipation0.06 W
Grid 2 Voltage45 V
Grid 1 Voltage-0.2 V
Cathode Current2 mA
Audio Performance
Typical THD10%
Power Output0.023 W
Key Features
- Hearing aid output stage
- Series or parallel filament supply
- Direct heating
- Subminiature design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 45V | 500 | 250000 | 6 | 1.25mA |
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