6SL7 Series Tubes

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6SL7 Series Tubes
Classification- It is a Twin triode. Dome-type bulb of glass, copper ceramic base with eight golden pins.
Application -It intended for use a voltage amplifier or Phase inuerter.
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Dimensions -Dimensions, outline diagrams of the tube and bases, and the arrangement of electrode
connections to the base terminals are shown in Figures 1, and 2.
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Nominal operating conditions and parameters
Heater voltage ……………………………………………………………… 6.3V
Heater current ……………………………………………………………… 0.3A
Plate voltage ………………………………………………………………… 250V
Grid voltage ………………………………………………………………… -2V
Plater resistance ………………………………………………………… 44kohms
Plate current ………………………………………………………………… 2.3mA
Amplification factor …………………………………………………………… 70
Heater-cathode voltage ……………………………………………………… 90V
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Characteristics-Average characteristics
Figure 3. shown typical curves of plate currents of grid voltage for several values of plate voltages. It is
alternating-current filament supply.
Limiting Operation Conditions for Safe Nor simultaneous ratings
Maximum plate voltage ………………………………………………… 300 V
Maximum Grid voltage ………………………………………………… -50V
Maximum Grid voltage ………………………………………………… 0V
Maximum Power of plate …………………………………………… 2.5W
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