4060
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BrandPhilips
ClassElectrometer triode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialDirectly heated
Absolute Maximum Ratings
Plate Voltage6 V
Audio Performance
Key Features
- Electrometer triode
- Extremely low grid current
- Direct heating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 4V | 28 | 17857 | 0.5 | 0.095mA |
Application Notes
The exact value of the heater voltage to be adjusted is indicated for each valve. The exterior of the triode should be carefully cleaned and dried before use. To avoid photo-electric currents the tube should be mounted in the dark. The surrounding air should, if possible, be freed from moisture by means of a dessicator.
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