5893
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BrandPhilips
ClassPencil Type U.H.F. Medium-Mu Triode
BaseCinch 54A1 1953
Filament6V @ 0.28mA
Construction
Primary TypeTriode
EnvelopePencil
Base MaterialGlass-to-Metal
SectionsSingle
Filament / Heater
MaterialIndirectly Heated
Warm-up Time60s
Heater Notes6.0V under transmitting conditions; 6.3V under stand-by conditions
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation7 W
Grid 1 Voltage-100 V
Cathode Current35 mA
H-C Voltage90 V
Audio Performance
Key Features
- Pencil type
- Grounded grid service
- Anode pulsed oscillator
- UHF operation
- Frequency doubler
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 200V | 6000 | 4500 | 27 | 25mA |
| Anode-Modulated R.F. Amplifier (CCS) | 250V | - | - | - | 30mA |
| R.F. Power Amplifier (ICAS) | 350V | - | - | - | 35mA |
Application Notes
Connections to cathode cylinder, grid flange and anode cylinder should be made by flexible spring contacts only. Heater leads should not be soldered to circuit elements.
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