Tube-number record
4043-A / 4043-B
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BrandStandard Telephones and Cables
ClassTriode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialOxide coated
Absolute Maximum Ratings
Plate Voltage600 V
Plate Dissipation35 W
Cathode Current110 mA
Audio Performance
Power Output60 W
Key Features
- Oxide coated filament
- Constant voltage type filament
- Directly heated cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Constants @ 50mA Anode Current | — | 2285.7 | 3500 | 8 | 50 mA |
| Class B A.F. Amp. and Mod. (Zero Signal) | 600 V | — | — | — | 12 mA |
| Class B A.F. Amp. and Mod. (Max Signal) | 600 V | — | — | — |
Application Notes
For replacement purposes only. Replaced by 4043-C and 4043-D valves.
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