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Old 8th Jul 2020, 8:15 am   #30
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 15,197
Default Re: High voltage regulator circuit.

Quote:
Originally Posted by dave cox View Post
but that doesn't have to be an op-amp
There were valve opamps. Operational amplifier really describes an application for an amplifier.

Look up GAP - George A Philbrick. Rob Pease cut his teeth working there.

Then came discrete transistor designs, then monolithic ones.

David
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