Walter,

When my Morse receive abilities are good enough to follow
25 wpm!  I haven't used Morse for 30 years.
(stand by for a blast from you-know-who)

Walter G3JKV<

... no excuses, using the attached "Morse-Code-Chart" (hope the 13 kB jpeg
makes it through the reflector ...), you can look up each individual
letter, probably not at 25 wpm, but at the usual speeds on LF, and
especially using Slow-CW (remember: LF-Enthusiasts do it extremely slow!).
73

Geri, DK8KW (W1KW)

P.S.: My best guess of those curves were that it was some brain-current