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In comparing the PNP and NPN circuits | this interchange in the transistor, circuits | |||||
shown here, note that the current flow in
the components of one is completely re- versed in the other. With the vacuum tube, this complete interchange of current and voltage polarities does not exist. Because of |
which have no parallel in vacuum-tube
circuitry can be produced. Nevertheless, the circuits of transistorized equipment are still auite similar in many respects to those of equipment employing vacuum tubes. |
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Using PNP Transistors | ||
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With Positive
Battery Terminal Grounded |
With Negative
Battery Terminal Grounded |
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Using NPN Transistors | ||
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|
With Positive
Battery Terminal Grounded |
With Negative
Battery Terminal Grounded |
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