Tube-number record
ZM1250
0 archive entries
ZM1250 is a tube type in the TubeDatabase archive (class: Gas Discharge Dot Matrix Display Tube). Recorded specifications: brand Mullard, construction Other / special, socket Flexible / flying leads, maximum plate voltage 220 V, and maximum plate dissipation 0.4 W. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassGas Discharge Dot Matrix Display Tube
BaseFlexible / flying leads
Construction
Primary TypeOther / special
EnvelopeFlat pack construction
Sections7 x 5 dot matrix plus decimal point
Filament / Heater
Absolute Maximum Ratings
Plate Voltage220 V
Plate Dissipation0.4 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Dynamic or D.C. Drive | 140 V | — | — | — | 1.5 mA |
Application Notes
For envelope temperatures below +10°C the life expectancy of the tube is substantially reduced. It is recommended that a red (blue-light absorbing) filter be used, preferably of circularly polarised type. Tube may be soldered directly into a printed circuit board.
Datasheets
Datasheet: ZM1250.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results