ZM1040
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ClassIndicator Tube
BaseB13B
Construction
Primary TypeCold Cathode
EnvelopeSide viewing
SectionsTen digit numeral
Filament / Heater
Absolute Maximum Ratings
Plate Voltage170 V
Cathode Current6 mA
Audio Performance
Key Features
- Ten digit numeral indicator
- Side viewing
- Red contrast filter
- Cold cathode
- Neon glow
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| DC Operation | 200V | - | 15000 | - | 4.5mA |
| DC Operation | 250V | - | 27000 | - | 4.5mA |
| DC Operation | 300V | - | 39000 | - | 4.5mA |
| DC Operation | 350V | - | 47000 | - | 4.5mA |
Application Notes
Bulb temperatures below 0 °C result in a reduced life expectancy. Constant current operation is recommended for wide temperature ranges.
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