Tube-number record
4464
0 archive entries
4464 is a tube type in the TubeDatabase archive (class: Multiplier Phototube). Recorded specifications: brand RCA, year 1964, construction Multi-section, base Non-hygroscopic, socket Diheptal, and maximum plate voltage 2000 V. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassMultiplier Phototube
BaseDiheptal
Construction
Primary TypeMulti-section
EnvelopeJ24
Base MaterialNon-hygroscopic
Sections10-stage
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2000 V
Grid 2 Voltage300 V
Grid 1 Voltage600 V
Cathode Current1 mA
Audio Performance
Key Features
- Head-on type
- Flat-faceplate
- Low dark current
- High sensitivity over wide spectrum
- Semitransparent Multialkali cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Supply Voltage E = 2000V | 2000 V | — | — | 1600000 | — |
| Supply Voltage E = 1500V | 1500 V | — | — | 31000 | — |
Application Notes
Recommended average anode current should be well below 1 mA for stability. For maximum stability, do not exceed 10 microamperes.
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