41 M.H.L.
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BrandCOSSOR
ClassIndirectly Heated Triode
Filament4V @ 1000mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly Heated
Absolute Maximum Ratings
Plate Voltage200 V
Audio Performance
Key Features
- Low impedance
- High mutual conductance
- Indirectly heated
- Sensitive power grid detector
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Detector or L.F. Amplifier | 200V | 4500 | 11500 | 52 | 4mA |
Application Notes
Suited for detector positions where preceding amplification requires a low impedance valve. Recommended shunt-fed transformer coupling (30,000 ohms/1 mfd) for power grid detection. Suitable for anode bend detection with resistance-capacity or transformer coupling.
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