Hi all, to avoid finding next to nothing for a few hours,:veryangry: place a bit of Blue -Tac on the discriminator knob after you have set it, because you can easily brush it accidentaly and set it too high . Maybe the engineers at Fisher can put a notched knob on instead of the smooth one.
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F5 Discrimination
- Thread starter shiraz
- Start date
Dailydigger
New member
it will not block out pennies dimes and quarters all the way up? found a silver ring at 89
every time I put my MD down to dig a target I would catch the disc knob with my hand without noticing and turn it right up!