6CA7
57 Tubes in archive
BrandTUNG-SOL
ClassPower Pentode
Base8-Pin Octal
Filament6.3V @ 1.5mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage800 V
Plate Dissipation25 W
Grid 2 Voltage425 V
Grid 1 Voltage-1.3 V
Cathode Current150 mA
H-C Voltage100 V
Audio Performance
Typical THD10%
Power Output11 W
Key Features
- Coated Unipotential Cathode
- Glass Octal Type
- Any Mounting Position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A - Single Tube | 250V | 9000 | 18000 | 11 | 70mA |
| Class A - Single Tube (Max Signal) | 250V | 11000 | 15000 | 11 | 100mA |
| Class B - Two Tubes | 420V | - | - | - | 120mA |
| Class B - Two Tubes (High Voltage) | 775V | - | - | - | 91mA |
Application Notes
Suitable for all applications which require peak powers of up to 11 watts from a single tube or up to 100 watts from two tubes in normal push-pull arrangement.
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