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Vacuum Tube Data Sheets 6CA7 / EL34
| Operating Characteristics Class AB, two tubes |
| Supply voltage 375 volts |
| Load resistance, plate to plate |
3400 |
ohms |
| Common grid No. 2 resistor |
470 |
ohms |
| Cathode resistor |
130 |
ohms |
| Grid No. 3 voltage |
0 |
volt |
|
|
|
| Input voltage |
0 |
21 volts (rms) |
| Supply voltage |
375 |
375 volts |
| Plate voltage + voltage across cathode resistor |
355 |
350 volts |
| Plate current |
2 x 75 |
2 x 95 ma |
| Grid No. 2 current |
2 x 11.5 |
2 x 22.5 ma |
| Max. signal power output |
0 |
35 watts |
| Total harmonic distortion |
___ |
5 percent |
| Operating Characteristics in Triode Connection |
| (Grid No. 2 connected to plate) |
| Class A, one tube, supply voltage 375 volts |
| Supply voltage |
375 volts |
| Grid No. 3 voltage |
0 volt |
| Cathode resistor |
370 ohms |
| Load resistance |
3000 ohms |
| Input voltage |
18.9 volts (rms) |
| Plate current |
70 ma |
| Max. signal power output |
6 watts |
| Total harmonic distortion |
8 percent |
| Input voltage for power output of 50 milliwatts |
1.7 volts (rms) |
| Operating Characteristics in Triode Connection |
| (Grid No. 2 connected to plate) |
| Class AB, two tubes, supply voltage 400 volts |
| Supply voltage |
400 |
volts |
| Grid No. 3 voltage |
0 |
volt |
| Cathode resistor |
220 |
ohms |
| Load resistance, plate to plate |
5000 |
ohms |
|
|
|
| Input voltage |
0 |
22 volts (rms) |
| Plate current |
2 x 65 |
2 x 71 ma |
| Max. signal power output |
0 |
16.5 watts |
| Total harmonic distortion |
___ |
3 percent |
Vacuum Tube Data Sheets
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