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Old 15th Apr 2020, 5:02 pm   #42
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 14,492
Default Re: A home brew meter re-magnetiser.

Stupid sideways thought....

If you can wind some turns around the Avo's magnet, you could sneak in a regulated low voltage power supply to provide a bit of extra mains powered field. It could even be adjustable for future re-calibration.

A different approach to adding a little PSU and an opamp!

David
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