Transistor Gain The table below shows the ON characteristics of 2N3904. The 2N3904 datasheet lists the DC gain (hFE) of its alternative 2N3903 (PNP) in separate rows. You can see that the PNP type has 50% less gain than the NPN type, which is the biggest reason why the NPN type is...
Basically a high-gain linear amplifier, its characteristics can be altered by switching alternative resistor filter networks into its feedback system. For example, when the selector switch is set to the Mag phono position, alternative input sources can be selected by S1-a, and appropriate linear...
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The majority of avalanche pulse generators hobbyists built used 2N2369, the same transistor used in Jim Williams’ original experiment. One of the main benefits of using 2N2369 is that it can avalanche at a relatively low voltage (under 90V). But most general purpose NPN transistors such as...
Transistor Gain The table below shows the ON characteristics of 2N3904. The 2N3904 datasheet lists the DC gain (hFE) of its alternative 2N3903 (PNP) in separate rows. You can see that the PNP type has 50% less gain than the NPN type, which is the biggest reason why the NPN type is...