Tube-number record
AC/VP.1
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BrandEdiswan Mazda
ClassH.F. Pentode
Base7-pin (non-miniature)
Filament4 V @ 0.65 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Grid 2 Voltage250 V
Audio Performance
Key Features
- Indirectly heated
- Variable-mu
- Small cross-modulation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condition 1 | 250 V | 2000 | 1000000 | — | 7.4 mA |
| Condition 2 | 250 V | 2000 | 850000 | — | 8.8 mA |
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