20F2
0 Tubes in archive
BrandEdiswan Mazda
ClassTelevision Screened Pentode
BaseB8A
Filament11V @ 200mA
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialMoulded
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated—for series operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation4 W
Grid 2 Voltage250 V
H-C Voltage250 V
Audio Performance
Key Features
- Indirectly heated
- Series operation
- Replacement type
- High mutual conductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Screened Pentode | 140V | 10600 | 125000 | 33 | - |
Application Notes
Mounting Position—Unrestricted. Measured with respect to the higher potential heater pin.
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