Tube-number record
3211/3212/3213/3216/3217/3218
0 archive entries
3211/3212/3213/3216/3217/3218 is a tube type in the TubeDatabase archive (class: Vidicon Image Pickup Tube). Recorded specifications: brand Heimann, construction Other / special, socket 8-pin, and maximum plate voltage 70 V. The archive does not yet hold a photographed example of this type.
BrandHeimann
ClassVidicon Image Pickup Tube
Base8-pin
Filament6.3 V @ 300 mA
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating by AC or DC; 3216-3218 types use 95 mA current.
Absolute Maximum Ratings
Plate Voltage70 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Image Operation | 42.5 V | — | 100000000 | — | 0.0003 mA |
Application Notes
Used in medical X-ray TV and industrial TV applications. Temperature of the front plate should be kept between 25-30°C to minimize dark current.
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