If a picture is worth a thousand words, whats a vid worth? Must be a formula for it somewhere......
btw, all VV are set to 5v before shipping, should work quite well with any standard atty. Turn set screw CCW to lessen voltage, CW to increase. About a 1/4 turn per volt.

btw, all VV are set to 5v before shipping, should work quite well with any standard atty. Turn set screw CCW to lessen voltage, CW to increase. About a 1/4 turn per volt.
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