Mellotronists

J.K.Beresford wrote:

> Hi max,
> There are small screws screwed into the top of the keys right at
> the back that are for correcting any tilt in the angle of the key when
> viewed from the front. Only useful for small degrees of warp though.
> In what way are they warped and how much? Are they curved along
> their length or twisted?
> John

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Greetings  JKB and everyone,

If the flat-head key twist adj. screws are turned too much,
they will change the angle of pinch roller arm relative to
the capstan.

Given the lesser of two evils, I personally permit the keys
to rest where they may . On all my Trons, I turn them all
anti-clockwise.  BTW, the orig. MK-I units had no screw
adj. for key-twist, not even drilled holes for future installation.

I've seen keys twisted along their length (most common),
and curved . The latter can be cured by carefully sanding
the sides of the offending key until clearance is achieved.
My M300 had 4-5 keys which were gently abrading their
neighbours during playing.  This was straightaway rectified
before MONEYPIT-2004 a fortnight ago.

Hope this helps,gang.
Cheers,  Jerry K (crooked teeth,but speaks well)