Yeh, not sure about the trigger for the "L"being logic and the "F: - im not sure. One thing is for certain - the IRF540 WILL NOT WORK unless you swap 2 of the legs over - the "gates"are in different positions,
However IRF540 has a slightly higher current rating
For the sake of $12.00 its not worth the stuffing around as the L's are available locally. I will order some now and fingers crossed it fixes the magnets & the ripper coil!
Is this board the same as the one on the GNR and subject to the same noise issues?