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power opamp?

Sorry Jim, you're right. I realized that after having read a few more messages than I did at the beginning.

Rene

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Rene Tschaggelar
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[snip]

No problem. I'm glad someone else mentioned it. It's reasonably stable when tied to the OpAmp output.

I used a similar configuration in the early '70's, no NPN, R to ground from OpAmp output, PNP directly to load (not tied to OpAmp output),

741 OpAmp, to make LDO's for the TOW missile, built as a hybrid in a TO-3 package ;-)

...Jim Thompson

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|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
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Jim Thompson

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