Hi Roy-Andre.
Good to see another Norwegian at forum once in a while
Did you visit the pages of Jørgen Sørensen?
There you'll find a lot of suff related to the Yamaha and others.

The sort of blues styles you're hunting for is those I miss most among the technics stuff too.
GJ

http://home7.inet.tele.dk/js/musik/740pages/
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Cheers 🥂
GJ
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"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)