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preenfm2 and preenfm3 / DC power adaptor- correct polarity..?
« on: January 30, 2021, 10:34:19 AM »
Hi
Purchased a 7.5-9V DC power adapter. In the instructions for that adapter it gives options for setting it up with either positive or negative polarity.. which is correct for using with my FM3? or should i just stick with the USB power?
Purchased a 7.5-9V DC power adapter. In the instructions for that adapter it gives options for setting it up with either positive or negative polarity.. which is correct for using with my FM3? or should i just stick with the USB power?