Tube-number record
RK-12
0 archive entries
RK-12 is a tube type in the TubeDatabase archive (class: Triode Power Amplifier). Recorded specifications: brand Raytheon, year 1938, construction Triode, base Isolantite, maximum plate voltage 750 V, and maximum plate dissipation 25 W. The archive does not yet hold a photographed example of this type.
BrandRaytheon
ClassTriode Power Amplifier
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialIsolantite
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage750 V
Plate Dissipation25 W
Cathode Current105 mA
Audio Performance
Power Output100 W
Key Features
- Thoriated tungsten filament
- Isolantite base
- High-mu triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Telegraphy | 750 V | — | — | — | 105 mA |
| Class B Audio (Two Tubes) | 750 V | — | 9600 | — | 200 mA |
| Class C Telephony (Plate Modulation) | 600 V | — | — | — |
Application Notes
Designed for use as a power amplifier, oscillator or frequency multiplier. Maximum ratings apply up to 60 megacycles.
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