If you want cheap, why not free?
Visit http://www.vinylengine.com/manuals_tonearm_protractors.shtml
Print your own. Have it laminated for $2 at Staples or Kinkos if you like.
Next best (and quite a bit better IMO) is probably the TurntableBasics for $20.
Visit http://www.vinylengine.com/manuals_tonearm_protractors.shtml
Print your own. Have it laminated for $2 at Staples or Kinkos if you like.
Next best (and quite a bit better IMO) is probably the TurntableBasics for $20.