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Conference 7.286::atarist

Title:	Atari ST, TT, & Falcon
Notice:	Please read note 1.0 and its replies before posting!
Moderator:	FUNYET::ANDERSON

Created:	Mon Apr 04 1988
Last Modified:	Tue May 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1433
Total number of notes:	10312

399.0. "RPM Checker?" by VINO::BHAMILTON (Buzz Hamilton) Wed Feb 22 1989 13:19

    Does anyone have an RPM checker for the floppy drive?  I know there
    is some belief that many of the drives are not adjustable.  I see
    two 'pots' there and hope one might do the rick.
    
(that's Trick)
    I now have two EPYX games that don't work right and believe that
    it might be that the copy protection scheme relies on disk RPM.
    
    WORLD GAMES has several events, the first two of which (outside
    edge of diskette?) won't load.  CHAMPIONSHIP WRESTLING just keeps
    rebooting after two seconds of music.
    
    I'm looking for an upload or pointer to a PD RPM checker.

T.R	Title	User	Personal Name	Date	Lines
399.1	Check a Recent Issue of START	TEA::PETERS	Don Peters, CTS1-2/H6, 287-3742	`Wed Feb 22 1989 15:35`	17
	I've heard some do exist, but that you should beware since some of them report the wrong RPM. Funny you should ask, since two days ago I was checking the RPM of my two floppy drives, and I had never done that before. The program to do that came out of a recent article in START, and was written by Dave Small, of Magic Sac fame. One of my drives checked out at 299 RPM and the other was about 297 RPM. Small stated that anything within the range 295-305 was probably good. You start getting lots of problems when the speed goes over 305, since the first and last sectors on a track tend to overlap. Slower speeds may just cause compatibility problems when swapping disks with other users. I wonder if club librarians check their disk speed? This should be a MUST if they distribute disks to lots of other users.
399.2	I Can't speak for other librarians, but...	LEDDEV::WALLACE		`Wed Feb 22 1989 15:55`	4
	This librarian does not check his disk speed regularly, but it does sound like a good idea. Ray
399.3		VINO::BHAMILTON	Buzz Hamilton	`Wed Feb 22 1989 17:14`	4
	re .1 so Don, could you upload Mr. Small's program for me? Please?
399.4	305 RPM is marginal	HJUXB::HASLOCK	Nigel Haslock @ Manalapan,NJ	`Wed Feb 22 1989 17:41`	6
	I checked my drive using Dave Small's program from START because I was unable to get 10 sector disks to work. The program reported 304 to 305. I have been waiting for a good time to fiddle with the pots to see if either of them do the job. I'll let you known what happens.
399.5	Sorry, its not public domain	TEA::PETERS	Don Peters, CTS1-2/H6, 287-3742	`Thu Feb 23 1989 15:30`	9
	re .3, which in turn was re .1: Well, I'd love to do it, but START is one of those publishers that say their material is NOT public domain. ST-Log lets you share their stuff after a short period of time, so I could do it if it were published there. So, once again, the issue may be whether or not such a program exists in the Public Domain. I don't know of one, but possibly Ray Wallace, the ABACUS librarian does.
399.6	I've got one	LEVERS::LANDRY		`Fri Feb 24 1989 00:28`	9
	A public domain speed checker can be found at LEVERS::USER$457:[LANDRY.ST.PUBLIC]SPEED.ARC This came on a PD disk catalog disk from AccuSoft. I have no idea of the accuracy but it says my disk is right on at 300 RPM. chris
399.7	I found my speed control	HJUXB::HASLOCK	Nigel Haslock @ Manalapan,NJ	`Fri Feb 24 1989 14:54`	6
	I opened up my drive yesterday. The sticky label says CHINON. On the botton of the drive, next to the hub are two pots, VR1 and VR2. Turning VR2 about 30 degrees anti-clockwise slowed the drive down from 306 to 300rpm. Good luck everyone.