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JJ 6CA7- QUAD
4 tubes, matched as quad
The 6CA7 is a powerful power tube developed in the 1950s by General Electric (USA). It is electrically largely compatible with the European EL34, but more robust in construction and differs in sound behavior. Both tubes are electrically interchangeable. The 6CA7 offers an alternative sound color and more robust operation at high power due to its Beam Tetrode design. Those who prefer more headroom, warmth, and depth in sound often choose the 6CA7.
| Feature | EL34 | JJ 6CA7 |
|---|---|---|
| Tube type | Pentode | Beam-Power-Tetrode (beam power) |
| Socket | Octal (8-pin) | Octal (8-pin, identical to EL34) |
| Heater voltage (Uf) | 6.3 V | 6.3 V |
| Heater current (If) | approx. 1.5 A | approx. 1.5 A |
| Max. anode voltage (Ua) | 800 V | 800 V |
| Max. anode power dissipation (Pa) | 25 W | 25 W (partly more robust) |
| Screen grid voltage (Ug2 max.) | 450 V | 500 V |
| Amplification factor (µ) | approx. 11 | similar, slightly higher |
| Construction | Slim glass envelope | Larger, wider envelope |
| Pin configuration | identical | identical |
| Sound character | „British“ – centered, assertive | „American“ – warm, powerful, round |
Safety Information for Vacuum Tubes
For all electrical, electromechanical and mechanical components, the specifications and operating parameters arising from the respective type standard generally apply.
Further information, where available, can be found in the respective data sheets and product descriptions included with the product.
For all electrical, electromechanical and mechanical components, the specifications and operating parameters arising from the respective type standard generally apply.
Further information, where available, can be found in the respective data sheets and product descriptions included with the product.
General Information
- NOT SUITABLE FOR CHILDREN - choking hazard due to small parts
- NOT SUITABLE FOR UNTRAINED PERSONS - danger to life due to high voltages
- The safety and processing requirements applicable to the component must be observed
- CE conformity applies only when installed professionally
- Warranty becomes void in case of improper handling
- The operator is responsible for proper installation
- Local regulations and VDE provisions must be complied with
- Never exceed the rated power
- Never exceed the rated voltages and currents
Required Expertise
- Use of measuring instruments (multimeter, oscilloscope) and evaluation of measurement results
- Safe handling of high voltages (up to 500V and more)
- Reading and understanding circuit diagrams
- Selection of appropriate tools
- Knowledge of electrical components and their characteristics
- First-aid knowledge for electrical accidents
- Knowledge of VDE regulations and safety requirements
Amplifier Tubes
- Hazard due to high voltages
- Hazard due to very high heat generation
- Hazard due to glass breakage
- Hazard due to UV radiation in case of defective tubes
Herstellerinformationen | Manufacturer Information
JJ Electronic
A. Hlinku 3
022 01 ČADCA
Slowakische Republik
www.jj-electronic.com
JJ Electronic
A. Hlinku 3
022 01 ČADCA
Slowakische Republik
www.jj-electronic.com
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