3A/141A
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BrandStandard Telephones and Cables
ClassRepeater Triode
BaseAmerican medium 4-pin bayonet
Construction
Primary Typetriode
EnvelopeGlass
Base MaterialPlastic/Bakelite
Sections1
Filament / Heater
Materialoxide-coated
Absolute Maximum Ratings
Plate Voltage190 V
Cathode Current12 mA
Audio Performance
Key Features
- Oxide-coated filament
- Low amplification factor
- Medium 4-pin bayonet base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Operation | 130V | 1000 | 6000 | 6 | - |
Application Notes
QGA/I41AY is the 3A/I41A tested to special limits for replacement purposes only.
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