Tube-number record
6I1P
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BrandUSSR
ClassTriode-Heptode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.7 W
Grid 2 Voltage100 V
Cathode Current12.5 mA
H-C Voltage100 V
Audio Performance
Key Features
- Indirectly heated
- Frequency conversion
- High transconductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 100 V | 2200 | — | 23.5 | 6.8 mA |
| Heptode Section (Mixer Operation) | 250 V | 770 | 700000 | — | 3.8 mA |
Application Notes
Designed for frequency conversion in electronic devices.
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