ampage tube data |
ampage tube data |
---|
6CA7 / EL34 POWER PENTODE | ||||||||||||||||||||
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| Glass octal types
used in the output stage of audio- frequency amplifiers. Tube requires octal socket. |
Heater Voltage (AC/DC) | 6.3 | volts |
Heater Current | 1.5 | ampere |
Peak Heater-Cathode Voltage | ||
---|---|---|
Heater negative with respect to cathode | 200 max | volts |
Heater positive with respect to cathode | 200 max |
Direct Interelectrode Capacitance | ||
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Grid No.1 to Plate | 1 | pf |
Grid No.1 to Cathode, Heater, Grid No.2, and Grid No.3 | 15.5 | |
Plate to Cathode, Heater, Grid Ho.2, and Grid No.3 | 7.2 |
CLASS A1 AMPLIFIER |
Maximum Ratings (Design-Center Values) | ||
---|---|---|
Plate Voltage | 800 | volts |
Grid-No.2 (Screen-Grid) Voltage | 425 | |
Grid-No.2 Input | 8 | |
Cathode Current | 150 | ma |
Plate Dissipation | 25 | watts |
Typical Operation | ||
---|---|---|
Plate Voltage | 265 | volts |
Grid-No.2 Voltage | 250 | |
Grid-No.1 (Control-Grid) Voltage | -13.5 | |
Peak AF Grid-No.1 Voltage | 12.3 | |
Zero-Signal Plate Current | 100 | ma |
Zero-Signal Grid No.2 Current | 15 | |
Transconductance | 11000 | umhos |
Plate Resistance (Approx.) | 15000 | ohms |
Load Resistance | 2000 | |
Maximum-Signal Power Output | 11 | watts |
Total Harmonic Distortion | 10 | % |
PUSH-PULL CLASS AB1 AMPLIFIER |
Maximum Ratings (Design-Center Values) | ||
---|---|---|
Plate Voltage | 800 | volts |
Grid-No.2 (Screen-Grid) Voltage | 425 | |
Grid-No.2 Input | 8 | |
Cathode Current | 150 | ma |
Plate Dissipation | 25 | watts |
Typical Operation (Values are for two tubes) | |||
Plate Supply Voltage | 450 | volts | |
Grid-No.2 Supply Voltage | 450 | ||
Cathode-Bias resistor | 232 | ohms | |
Grid No.2 resistor | 1000 | ||
Peak AF Grid-No.1-to-Grid No.1 Voltage | 38.2 | volts | |
Zero-Signal Plate Current | 120 | ma | |
Maximum-Signal Plate Current | 143 | ||
Zero-Signal Grid-No.2 Current | 20 | ||
Maximum-Signal Grid-No.2 Current | 44 | ||
Effective Load Resistance (Plate-to-plate) | 6500 | ohms | |
Total Harmonic Distortion | 5.1 | % | |
Maximum-Signal Power Output | 40 | watts |
Maximum Circuit Value | ||
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Grid No.1 Circuit Resistance, for cathode-bias operation | 0.7 | megohm |