Tube-number record
RK-3B29
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BrandRaytheon
ClassDiode Rectifier
Base4-pin
Filament2.5 V @ 4.9 mA
Construction
Primary TypeHigh vacuum
Rectifier TypeHeater-Cathode
EnvelopeT-12
Base MaterialPhenolic
Filament / Heater
Warm-up Time120s
Heater NotesHeating time 2 minutes
Absolute Maximum Ratings
Plate Voltage16000 V
Cathode Current95 mA
Audio Performance
Key Features
- Hard glass nonex envelope
- Gold plated plates
- Zirconium coated anodes
- Heliarc welded cathode
- Self supporting anodes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier Operation 1 | 16000 V | — | — | — | 64 mA |
| Rectifier Operation 2 | 7700 V | — | — | — | 80 mA |
| Rectifier Operation 3 | 5000 V | — | — | — | 95 mA |
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