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Original Message
RE: Heaters in series?
Posted by vetmedrobert@gmail.com on August 6, 2017 at 10:27:13:
Well to be strictly correct wouldn't that be lower voltage?. All kidding aside the second stage is biased with a separate negative voltage supply. I believe the term used is "fixed bias" but I have never understood this since most such supplies have provisions to allow adjustment of the voltage.