[sdiy] Yamaha CE keyboards ?

[jhaible]

This may look off-topic at first glance, but it isn't. (;->)

Is anybody here familiar with the Yamaha CE keyboards?
These were cheap preset FM keyboards which pre-dated
the DX-7.
I wonder if they have a decent keyboard action, if the keys
have metal contacts (no rubber stuff), and if the aftertouch
works as a variable controller (and not just as a switch, as
the user manual suggests.)

Anybody on the list who knows ?

Thanks,

JH.