Tube-number record
6EV7
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6EV7 is a tube type in the TubeDatabase archive (class: Duotriode). Recorded specifications: brand Sylvania, construction Triode, base Glass, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 4.5 W. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassDuotriode
BaseNoval (B9A)
Filament6.3 V @ 600 mA
Construction
Primary TypeTriode
EnvelopeT-6 1/2
Base MaterialGlass
SectionsTwin
Filament / Heater
Heater NotesBogey value
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation4.5 W
Cathode Current20 mA
H-C Voltage200 V
Audio Performance
Key Features
- Miniature high-mu twin triode
- Separate cathodes
- Designed for relay-control service
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 250 V | 5200 | 11500 | 60 | 9.2 mA |
| Relay Control - ON Time > 30s | 150 V | — | 2500 | — | 10 mA |
| Relay Control - ON Time < 30s | 256 V | — | 2500 | — | 18.5 mA |
Application Notes
Designed for service as a relay-control tube in remote tuning units of television receivers.
Datasheets
Datasheet: 6EV7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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