Tube-number record
STR 150/40
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BrandVEB Werk für Fernsehelektronik Berlin
ClassVoltage Regulator Tube
BaseOctal
Construction
Primary TypeGlow discharge
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage180 V
Cathode Current40 mA
Audio Performance
Key Features
- Spannungsstabilisatorröhre
- Selbsttätigen Konstanthalten einer Gleichspannung
- Trägheitslose Regelung
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal Stabilization | 150 V | — | 700 | — | 20 mA |
Application Notes
The ignition voltage may be significantly higher in total darkness. A parallel capacitor should not exceed 0.1 µF to avoid relaxation oscillations.
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