| 摘要 |
A transistor amplifier comprising a bipolar transistor having an input electrode and a pair of output electrodes, one of the output electrodes being coupled to the gate electrode of a field effect transistor, the field effect transistor having triode-type dynamic characteristics. Respective sources of operating potential are coupled to the bipolar and field effect transistors. To stabilize the DC bias current flowing through the field effect transistor in the event of fluctuations of the operating potential supplied thereto, a portion of such fluctuations is injected into the other output electrode of the bipolar transistor.
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