Tube-number record
E2666B1
0 archive entries
E2666B1 is a tube type in the TubeDatabase archive (class: Direct-viewing bistable storage tube). Recorded specifications: brand Toshiba, year 1974, construction Display / CRT, socket Special / none, maximum plate voltage 2200 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
BrandToshiba
ClassDirect-viewing bistable storage tube
BaseSpecial / none
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsDual (Writing Gun and Viewing Gun)
Filament / Heater
Heater NotesWriting gun heater 6.3V, Viewing gun heater 4.2V
Absolute Maximum Ratings
Plate Voltage2200 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Writing Gun | 2000 V | — | — | — | — |
| Viewing Gun | 200 V | — | — | — | 30 mA |
Application Notes
Recommended for storage oscilloscope use. Viewing gun heater should use DC supply. Pin 3 of viewing gun heater is internally connected to viewing gun cathode.
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