Tube-number record
DCH11
0 archive entries
DCH11 is a tube type in the TubeDatabase archive (class: Triode-Hexode). Recorded specifications: brand TELEFUNKEN, year 1941, construction Multi-section, base Metal, socket 8-pin, maximum plate voltage 150 V, and maximum plate dissipation 0.3 W. The archive does not yet hold a photographed example of this type.
BrandTELEFUNKEN
ClassTriode-Hexode
Base8-pin
Construction
Primary TypeMulti-section
EnvelopeSteel
Base MaterialMetal
Sections2
Filament / Heater
MaterialDirectly Heated
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation0.3 W
Grid 2 Voltage150 V
Grid 1 Voltage-0.5 V
Cathode Current6 mA
Audio Performance
Key Features
- Battery tube
- Directly heated
- Variable transconductance
- Mixer stage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Hexode Mixer | 120 V | 300 | 1000000 | — | 1 mA |
| Hexode Mixer | 90 V | 280 | 1000000 | — | 0.75 mA |
| Triode Oscillator | 90 V | 1000 | — | 22 | — |
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