N Cook wrote:
or not in this case.
A bane of repair - the disappearing symptom.
Owner away till new year, Technics RS CH700 ribbon connected "separate".
Owner stopped using tapes because of squeel, on prompting he said on all
tapes and even on door opening but I forgot to ask whether one or other or
both tape drives.
Whatever I do I cannot induce a squeel.
Other than loose or tight capstan spindle what else could give a very loud
and
annoying audible squeel - he also confirmed it was mechanical and not
coming from speakers. Squeel on door opening suggests not pinch wheel
problems.
Dusting of talcum powder on rubber bands and return to owner? all rubber
bands seem good and right sort of tension.

Assuming the motor pulley/bearings and capstan shaft are lubed up, I
cant think off hand about what might cause this -.ask him about what
tapes he is using. I have some mid 70s / early 80s scotch cassettes
whose binder has hydrolised and are useless due to loud squealing and
poor tape movement. I've also seen this with some old prerecorded
cassettes (and others whioch were stored badly). Could just be he's had
his cassettes on a window ledge for 10 years! ;-)
-B.