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Full Music Audio Vacuum Tube 12BH7 for Amp Preamp Amplifier
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Full Music Audio Vacuum Tube 12BH7 for Amp Preamp Amplifier
2pcs 12BH7 Factory Matched and Tested
Substitution of 5687, 6N6, E182CC etc.
Classification- It is a Twin triode. It is a nine golden pins tube. Oxide coated of indirect heated.Application -It intended for use a voltage amplifier or Phase inuerter.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.
| Fig 1 | Fig 2 | |||
Nominal operating conditions and parametersHeater voltage ……………………………………………………………… 12.6VHeater current ……………………………………………………………… 0.3APlate voltage ………………………………………………………………… 250VGrid voltage ………………………………………………………………… -8VPlater resistance ………………………………………………………… 7.7kohmsPlate current ………………………………………………………………… 9mAAmplification factor …………………………………………………………… 20Characteristics-Average characteristicsFigure 3. shown typical curves of plate currents of grid voltage for several values of plate voltages. It is alternating-current filament supply. | ||||
| Fig 3 | ||||
Limiting Operation Conditions for Safe Nor simultaneous ratingsMaximum plate voltage ………………………………………………… 300 VMaximum Grid voltage ………………………………………………… -50VMaximum Grid voltage ………………………………………………… 0VMaximum Power of plate ……………………………………………… 2.5W |
Full Music Audio Vacuum Tube 12BH7 for Amp Preamp Amplifier