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ECC40, LC5
- Brand
- Valvo
Tube-number record
ECC40
22 archive entries
ECC40 is a tube type in the TubeDatabase archive (class: Double Triode). Recorded specifications: construction Dual triode and maximum plate dissipation 1.5 W. The archive holds 22 photographed examples of this type.
ClassDouble Triode
Construction
Primary TypeDual triode
EnvelopeGlass
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Dissipation1.5 W
Audio Performance
Key Features
- Low non-linear distortion
- Suitable for high-quality audio preamplifiers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Resistance-coupled Amplifier (Example) | 120 V | — | — | — | 4.5 mA |
| Zero Bias Example | 60 V | — | — | — | 5 mA |
Application Notes
The text emphasizes that for high-quality resistance-coupled amplifiers, a plate supply voltage (Vb) of at least 300V is preferred over the standard 250V to minimize distortion and avoid frequency response issues at high load resistances.
Datasheets
Datasheet: ECC40.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
