210 S.P.T.
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BrandCossor
ClassH.F. Pentode
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Grid 2 Voltage80 V
Audio Performance
Key Features
- Normal anode-current grid-voltage curve
- Non-variable-mu characteristic
- Leaky grid detector capability
- Anode bend detector capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. Pentode | 150V | 1100 | - | - | 3mA |
| H.F. Pentode | 150V | - | - | - | 2mA |
Application Notes
Used only in the first position in the set where the signal voltage is small. As an anode bend detector, smooth reaction is almost impossible to obtain.
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