Sony WM-DD100, serviced! Boodo Khan with original headphones and manual.

Description

Serviced
Sony
WM-DD100
Boodo Khan
- original headphones
- original user manual
- soft case not original but from a WM-DD33
Completely serviced WM-DD100, with new center gear, pinch roller and capstan ring. Completely cleaned and necessary parts are lubricated. All functions are working as they should be. Battery compartment is clean (there where no leaking battery's in the past). Optical the Walkman has only a few user marks (please look at the photos to make your own judgement). The soft case is not original but from a WM-DD33.
BE AWARE:
Because of the worldwide situation delivery's can take some longer than normal. In particular the US and Canada!
Returns are
accepted
but buyer pays
shipping
costs
Look at my other listings for more Walkmans and other vintage audio items!
Zero Feedback Members:
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New center gear and not a repaired/glued one
-
when the gear is glued this results in higher wow-flutter, so less good sound quality.
-
Why do the original gears always crack?
They’re usually made of POM material. This material is very reliable, long lasting and has very good friction properties. However, it has one negative property. It tends to shrink. It shrinks when it is heated, for example when player is left on sun or in car. By heating POM material to 60 C, it will shrink permanently about several percent. It also shrinks with time.
Problem is, when this gear is installed on some other part, for example on metal axle. Plastic material shrinks, while meta one doesn’t. High tension in plastic part will cause that it cracks. Some parts are made of other than POM material. This can be short lasting material, fragile, that breaks into several pieces after some time.
Pinch roller is
replaced:
Reason why this is important:
-
it can curl (eat) some or all tapes
-
it can cause speed variations
-
it can cause azimuth instabilities
-
playback can be randomly stopped
Capstan is replaced:
Reason why this is important:
-
is responsible for the correct tape speed
-
bad capstan is responsible for high wow flutter