Tube-number record
17/03TB
0 archive entries
17/03TB is a tube type in the TubeDatabase archive (class: Monitor Tube). Recorded specifications: brand Ferranti, year 1957, construction Display / CRT, base Plastic, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandFerranti
ClassMonitor Tube
BaseDuodecal
Filament6.3 V @ 0.3 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular 17 inch diagonal
Base MaterialPlastic
Sections1
Filament / Heater
Heater NotesSurge heater voltage should not exceed 9.5V r.m.s. during series operation.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Monitor Operation | 18000 V | — | — | — | — |
Application Notes
The modulator should never be positive with respect to the cathode, except briefly after switching off (+1V max).
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