Current mirror is inevitable part of input stage of operational amplifiers. Current mirror behaves almost as perfect current source in small current signals application and it has excellent characteristic for bipolar transistor biasing.
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Outside of America we realise that English is only one of the world's many languages.
2 of the diagrams appear to show a capacitor feeding the collector.NT
Is 50+ year-old information "scholarly" ?
An unfed troll gathers no podium. ...Jim Thompson
Look at it this way: the klunky languages serves as a warning about the klunky engineering and rickety science.
There's no point in talking to the guy: he's permanently stuck on transmit; I don't think he even looks at the threads he starts.
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