Actually, touching the platter has the same effect on the motor as adjusting the pitch unless you are totally jamming the platter to a near halt. If you lightly touch the platter or just twist the spindle, the effects are no worse than adjusting the pitch. When you adjust the pitch, the motor slows down but the platter still wants to spin fast. The platter's moment of inertia puts a torque on the motor (which is instantaneously spinning slower that the record) before it slows down. I wouldn't worry too much about it. If it were disastrous to the motor, Technics wouldn't have a stop button, which brings the platter to a fast halt. This exerts a bigger torque to the motor than rubbing your finger against the platter for sure.
Just imagine if you were to hold a merry-go-round by its shaft while it were spinning and your hands were the motor keeping it going. If you want the thing to spin faster, you would have to start moving your hands ffaster. In doing this, you would feel a reaction torque on your hands from the "platter." ie, the merry-go-round would want to spin slower until the motor pushes it faster. When the motor pushes the platter pushes back. When you touch the platter the platter pushes and the motor pushes back... On Wed, 20 Nov 2002, James Bucknell wrote: > > jeebers--it's bad to slow a record by dragging your > finger against the > platter? does the same apply to speeding the record up > by twisting the > spindle? > > i just watched what dj pierre did and tried to do the > same. > > so how are you meant to slow a record on the 1200s > without touching the > platter? > james > > > > > From: "seth redmond" <[EMAIL PROTECTED]> > > Date: Wed, 20 Nov 2002 11:49:45 +0000 > > To: [EMAIL PROTECTED], [EMAIL PROTECTED], > 313@hyperreal.org > > Subject: RE: (313) re: best decks > > > > I'm still undecided on whether the torque is better > or worse. Although it > > seems logical to get as much as possible, when I > tried mixing on Vestax I > > missed the ability to drop a record back into time by > dragging my finger > > across the edge of the plate as I could with 1200s; > although unexpectedly > > had no trouble moving back to technics again. > > I am pretty convinced that once I got out of this > habit (bad for the motor > > in any case) I wouldn't mind. The only thing I am > sure I would miss on > > technics is the +10 pitch control. I never had to use > the +50's but I've > > often found that I was agonisingly just-out-of-range > on the technics and had > > to piss about subtely speeding the other record up / > down > > > > it's not the first time I've heard doubts about the > build quality, but don't > > know anyone who's had them long enough for it to be > an issue. their mixers > > have always been pretty nice mind. > > > > -s > > > >> From: "Neil Wallace" <[EMAIL PROTECTED]> > >> To: "'Langsman, Marc'" <[EMAIL PROTECTED]>,"'seth > redmond'" > >> <[EMAIL PROTECTED]>,<313@hyperreal.org> > >> Subject: RE: (313) re: best decks > >> Date: Wed, 20 Nov 2002 10:49:55 -0000 > >> > >> > >> I got one pdx 2000 (as it was all I could afford at > the time) and I > >> really love it: -50% is actually really useful as > use you can mix things > >> at half tempo to do some weird x2s, having a reverse > button is also very > >> useful and yes they seem to have quite a lot more > torque - which may not > >> be a good thing if you play out a lot as after using > vestax technics > >> feel very light and you need to use a much gentler > touch and yeah > >> skipping is virtually non existent which I believe > is due to the tonearm > >> being designed to produce no lateral force > perpendicular to the tonearm > >> instead all the forces run parallel to the tonearm > (or that's the theory > >> anyway) > >> Build quality wise I would say that echnics still > have the edge insomuch > >> as touching the deck with the needle on the record > doesn't seem to make > >> a noise thru the speakers whereas at high volumes if > you tap the vestax > >> you can hear the tapping. > >> > > > > > _________________________________________________________________ > > Add photos to your e-mail with MSN 8. Get 2 months > FREE*. > > <a href="http://mail.peoplepc.com/jump/http://join.msn.com/?page=features/featuredemail";>http://join.msn.com/?page=features/featuredemail</a> > > > > TJJ ~in a perfect world, nothing is perfect~ ________________________________________________ PeoplePC: It's for people. And it's just smart. http://www.peoplepc.com
