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Even with regulated baising, you still need some way to track thermals. Also on a side note, even a amp that has regulated biasing, should not be biased. Once the transistor is biased were it is continually conducting, any increase to voltage on collector will cause it to conduct harder. Several tens of mA in fact. Just some findings I discovered while testing on the bench.

[QUOTE="Crusher, post: 158392, member: 3746"] Even with regulated baising, you still need some way to track thermals. Also on a side note, even a amp that has regulated biasing, should not be biased. Once the transistor is biased were it is continually conducting, any increase to voltage on collector will cause it to conduct harder. Several tens of mA in fact. Just some findings I discovered while testing on the bench. [/QUOTE]

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