<html> <body> Charles, After completing my correspondence course and discovering I was half a day over icy mountain roads away from the nears technicians and active chapter of the guild I got a Peterson 490ST on the recommendations of the course faculty.  At least I could check out my progress.  That said, it is actively for-sale.  I'll sell it in new condition with pedal and softcase for $200 less than you can buy it new.  Do I recommend it?  Only for a rebuilding shop where you want to chip a bunch of pianos up fast.  It is fast to respond.  Why?  Very few ETDs actually listen to the piano you are tuning and adjust stretch accordingly.  Peterson doesn't and anything in that price range won't.  I found myself testing intervals and adjusting on the fly which would be ok if it was a knob but it has a touch pad.  Way too slow.  It is a big heavy beast that is tethered to an electrical wall socket.  I upgraded to a Veritune VT100.  So far, it is the only one that listens to each note you are tuning and adjusts on the fly.  It also has neat PTG testing functions that make practice a cinch. Sincerely, Andrew Anderson At 09:51 PM 3/2/2006, you wrote: <blockquote type=cite class=cite cite="">I am extremely new to tuning and am trying to learn this profession. Would someone give me a list of tools I should <a href="mailto:have.charles.potter2@verizin.net"> have.charles.potter2@verizin.net</a>   Also does anyone use a peterson 490st tuner?</blockquote></body> </html>