SP141
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BrandMazda (Ediswan)
ClassH.F. Pentode
BaseMazda Octal (8-pin)
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialBakelite
SectionsSingle
Filament / Heater
MaterialDirectly Heated
Absolute Maximum Ratings
Plate Voltage90 V
Grid 2 Voltage90 V
Audio Performance
Key Features
- Dry Cell battery operation
- Metallised envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation (Condition 1) | 83V | 750 | - | - | 1.55mA |
| Typical Operation (Condition 2) | 90V | 800 | - | - | 1.7mA |
| Rating Condition | 90V | 900 | - | - | - |
Application Notes
Designed for satisfactory operation from a 1.5 volt-cell without additional resistance.
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