Note too that the old NCE decoder (almost certainly) has no BEMF, and a such will be much more sluggish at slow speed than the WOW, however hard you try to get it to match. ?Best thing would be to replace it with a modern decoder with tunable BEMF. A non-sound TCS decoder might be a good choice as it probably has the same motor drive algorithms as the WOW.
Mick
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Mick Moignard
m: +44 7774 652504
Skype: mickmoignard
, so please excuse the typos.