RK-100
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BrandRaytheon
ClassGaseous Discharge Triode
Base6-prong
Filament6.3V @ 900mA
Construction
Primary TypeGaseous Discharge Triode
EnvelopeST
SectionsSingle
Filament / Heater
Heater NotesHeater type gaseous discharge tube containing mercury vapor.
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation15 W
Cathode Current250 mA
Audio Performance
Typical THD10%
Power Output4.2 W
Key Features
- Mercury vapor filling
- Auxiliary ionizing grid (Grid 1)
- High transconductance
- Virtual cathode
- Low internal impedance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| A-F Power Amplifier - Class A Single Tube | 110V | 16000 | 2500 | 40 | 65mA |
| A-F Power Amplifier - Class A Single Tube (Alt) | 140V | 12000 | 3600 | 40 | 50mA |
| R-F Oscillator - Class C | 110V | - | - | - | 80mA |
| R-F Amplifier - Class C | 110V | - | - | - | 185mA |
Application Notes
Contains mercury vapor and an auxiliary grid (number one grid) which acts as an anode for ionizing discharge and as a virtual cathode for the amplifier section. A 15-minute warm-up is required on first use to ensure mercury distribution.
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