Microscope for stylus inspection


What power of magnification is adequate to determine stylus wear?
I purchased a 30X hand-held scope and checked my stylus.
It looks "as-new" i.e., like a perfect cone (Sumiko Blue Point Special).
There are no obvious flats on the sides and all seems to be fine.
I could see where the technician polished the sides and left the 0 and 180 degrees points a little "rough" as they never touch the vinyl.
Does this sound O. K. or do I need a more powerful scope?
dweller

Showing 4 responses by dweller

Larryi: I'm just worried that I may be using a stylus that is causing damage to my records.
I purchased a used record the seller claimed was "mint -" which had significant groove damage (crispy crackling) on both of the final (inner) tracks.
The seller said he was using a better cartridge/turntable which had been professionally set up.
I agree you have to trust your ears but when the damage is done it's done.
I'm pretty confident that what I'm seeing though my budget scope is a healthy "needle".
Thanks to both for the input.
The new Acoustic Sounds catalog shows a technician inspecting a stylus using a
"Heerbrugg M5 microscope, a Swiss product specifically designed for phono cartridge inspection"...
"This device allows our techs to examine cartridges at up to 50X magnification".
I feel better now that I am, at least, in the ball park.
Purchased at a telescope store on west Sahara in Las Vegas, NV.
Think it was around $40.00.