[charles28722]

I was seeking a better understanding of what my cartridge stylus is actually doing and stumbled across this last night: 

http://www.synthgear.com/2010/audio-gear/record-grooves-electron-microscope/

You junkies have probably seen this, but I find the concept both intesting and extremely primitive.  But the sound... 

Charles

[Indiansprings]

Very cool

[neobop]

Here's 4 pages of grooves and needles you might find interesting.
http://www.micrographia.com/projec/projapps/viny/viny0100.htm

neo

[WGH]

Thanks for the link. The cheap red-green 3-D glasses I got from Blockbuster to watch Coraline worked great to see the 3-D record groove.

Wayne

[Pez]

Now that is cool! If I'm seeing correctly the middle groove looks like it's a trumpet playing B flat with a slight vibrato. 

[BaMorin]

Now that is cool! If I'm seeing correctly the middle groove looks like it's a trumpet playing B flat with a slight vibrato. 

LOL..........Maybe on your table it sounds like a trumpet. On mine it sounds like a full step bend on 4th E played through stacked marshalls ( the mic is picking up the cabinet resonace)