Tube-number record
SP.210
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BrandEdiswan Radio (Mazda)
ClassBattery Screened H.F. Pentode
Base7-pin (non-miniature)
Construction
Primary TypePentode
EnvelopeMetallised
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Grid 2 Voltage150 V
Audio Performance
Key Features
- Screen grid H.F. Pentode
- Metallised bulb
- Battery operated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operation 1 | 120 V | 800 | 2000000 | — | 0.55 mA |
| Operation 2 | 120 V | 1200 | — | — | 1.1 mA |
Application Notes
Specially suitable for use as a cumulative grid or anode bend detector, or as an H.F. amplifier when a variable-mu characteristic is not desired.
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