I took the hood of my FRG7 and the values I measured are :?
Unlocked (led on) = 1.9V
Locked (led off) =? 0.29V?
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But have to say that I have modified my FRG7 with this a bicolor led mod, see :? https://www.ph2lb.nl/blog/index.php?page=yaesu-frg7-mods
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Lex PH2LB