Stylus cleaning


#41

Might lob a cheap cart into the sonic cleaner at work to see what happens.


#42

Don’t leave it too long. If it is in solvent and the diamond is glued you might lose it.


#43

So do you think that the bit that’s actually making contact (and which appears to have flats worn on it) is as indicated by the 2 arrows?


#44

Was thinking of just using water


#45

Yes, that is the worn bit. It would have been elliptical. The edges of the ellipse have been worn down.


#46

Should be good.


#47

Presumably the flat bits mean that you’ll lose high frequencies?


#48

I would think so. Probably sounds very musical, like a 103, now.


#49

I would expect it to look like this when new.


#50

Yes I was looking at this image in a thread on Lenco heaven.

and this one

The vdH stylus was interesting with its fine ridge in contact with the groove walls. Eventually he had a falling out with the manufacturer Gyger over the IP. He said it was his design but they claimed it was theirs as they’d developed the manufacturing process.


#51

This is quite a good thread about profiles.
https://www.vinylengine.com/turntable_forum/viewtopic.php?t=22894


#52

I think the Jico SAS stylii looked like that Microline. Would be interesting to check the profile of the Koetsu, as I have never seen what the profile should be.
Anybody want to send me a new one?

I do wonder what happens during the burning in process. Does the roughness of the diamond get polished?


#53

Never knew koetsu used a quadrahedron stylus according to vinyl engine


#54

I think it basically means fine line as that’s what’s left either side once the 4 corners are ground off.


#55

What sort of microscope are you using to capture those images? They look nice quality pictures.


#56

I have a benchtop scanning electron microscope in the workshop at the moment. It is waiting to go back to its owner, but a Linn Asak accidentally fell in it.


#59

If anybody wants one I can probably get you a deal for £50k or so.


#60

Why would you want to scan a benchtop?


#61

Reasons.

It sits on a benchtop silly. As opposed to a floorstanding one.


#62

What, an Asak?