16A5
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BrandPHILIPS
ClassFrame Time Base and Sound Output Tube
BaseNoval
Filament16.5V @ 300mA
Construction
Primary Typepentode
EnvelopeT6.5
Sectionssingle
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation9 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current75 mA
H-C Voltage200 V
Audio Performance
Typical THD10%
Power Output4.2 W
Key Features
- Frame time base
- Sound output tube
- High transconductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Sound Output Amplifier (Single) | 170V | 9000 | 20000 | 10 | 53mA |
| Class A Sound Output Amplifier (Single) | 200V | 7600 | 24000 | 10 | 45mA |
Application Notes
Circuit should be designed around a peak plate current not exceeding 90 mA at plate voltage of 50 V and Grid 2 voltage of 170 V for frame output application.
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