SP.41
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BrandMazda
ClassPentode
BaseMazda Octal
Filament4V @ 0.95mA
Construction
Primary TypePentode
EnvelopeSmall dimensions, metallised
SectionsSingle
Filament / Heater
Heater NotesA.C. Mains
Absolute Maximum Ratings
Plate Voltage250 V
Grid 2 Voltage250 V
Audio Performance
Key Features
- Screened H.F. Pentode
- Metallised bulb
- High Mutual Conductance
- Designed for Television Receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Video Output | 200V | - | - | - | 22mA |
| H.F. / I.F. Amplifier | 200V | 7600 | - | - | 8.5mA |
| H.F. / I.F. Amplifier | 200V | 8500 | - | - | 10.9mA |
| H.F. / I.F. Amplifier | 250V | 8400 | - | - | 11.1mA |
Application Notes
Used in H.F. and I.F. stages of television receivers. Suitable for frequency changers with conversion conductances up to 3000 µmhos. Capacity change due to space charge is approximately 4.25 pF.
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