RH7C
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BrandSiemens
ClassCeramic disc-seal triode
BaseDisc-seal (Contact surfaces)
Filament6V @ 800mA
Construction
Primary Typetriode
Envelopeceramic
Base Materialceramic/metal
Sectionssingle
Filament / Heater
Heater NotesIndirect by AC or DC, parallel supply; MK dispenser cathode
Absolute Maximum Ratings
Plate Voltage600 V
Plate Dissipation25 W
Grid 1 Voltage-50 V
Cathode Current75 mA
Audio Performance
Key Features
- Contact cooling
- Air cooling
- Ceramic-metal construction
- Dispenser cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 420V | 16000 | - | 60 | 60mA |
| CW Oscillator (6 kMc) | 420V | - | - | - | 60mA |
| Amplifier (4 kMc) | 400V | - | - | - | 60mA |
Application Notes
Ceramic disc-seal triode for use as oscillator or amplifier up to approx. 7000 Mc and as frequency multiplier up to approx. 9000 Mc.
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