From att!ihlpm!cmv Fri Nov 10 11:43:22 1989 Subject: Re: Drives for the 7300. I'm including with this mail the "newest" latest-and-greatest list of ST506/412 drives. This list was taken off of the Western Digital Bulletin board and all of the non-MFM drives were taken out by a friend of mine. Now, to answer some of your questions. The cheapest place that I've found to buy stuff from is a place called ELEK-TEK in Willowbrook IL (call 312-555-1212 for their phone number). Check around Columbus though, you may find something cheaper. Also, you may consider used drives if any good deals present themselves. All of the drives on the list are ST506/412 drives. This is the name of the "standard" for the electrical connection that they follow (similar to RS-232). What this means to you is that you can go out and buy ANY hard disk that has an ST506/412 interface on it, and put it into your machine. By "put it into your machine" I mean that all you have to do is unplug the 3 connectors on the old drive (power, control, and data), remove the old drive, place the new drive in there, and connect the 3 cables to your new drive. Now there is one hitch here, the recording method. This is how the hard disk actually records bits on the magnetic emulsion. For ST506/412 drives there are 2 methods, MFM and RLL. MFM (Modified Frequency Modulated) is very close to how FM radio stations encode analog data on to RF signals, and also happens to be the way that the unixpc hard disk controller chip (WD1010 or WD2010) expects the hard disk drive to encode the data. RLL (Run Length Limited) is a very different method of encoding data, and WILL NOT WORK WITH THE UNIXPC'S HARD DISK CONTROLLER CHIP. So, when you see an advertisement for ST506/412 drives typically, you'll one version of the drive is configured with the RLL recoring method and can hold, say, 150MB of information, while the MFM version of that drive will only be able to hold 100MB of information. To this date, I have never heard of an ST506/412 MFM drive that couldn't simply replace the existing drive in the unixpc. No additional hardware or software is needed. There are new 3.5" drives V.S. the old 5.25" drives. This measurement refers to the width of the drive, the one you have is 5.25" wide. The smaller drives are nice because they use less power, but they are more expensive. The other problem with 3.5" drives is that , but the mounting holes don't line up with the holes drilled for the 5.25" drives. You can get additional There are also full height drives V.S. Half Height drives. This simply refers to the "thickness" of the physical size of the drive. The one that you have is a half height, a full height is twice as thick. The 3b1 version of the unixpc had a "hump" in the case right over the hard disk to accomidate the full height drives, the 7300s did not. Also, half heights typically use less power than full heights. You want a drive that uses as little power as possible, the less power, the less heat generated, and heat is what kills things. The drives marked VERIFIED on the old list were simply ones that I've had first hand experience with, or got feedback from reliable second hand people. I've since decided that this doesn't make any difference, so I've dropped it from the new list. Also, after you've replaced the old 20MB drive, you can take it to someone with an old IBM-PC clone and sell it to them. Have fun -Craig I just got around to stripping out the NON-MFM disks from the copy of WD's file which you sent. I don't claim there is VALUE in the following, but just thought I'd waste the electrons to mail it back to ewe. Thanks for sending it on. PS: I particularly like some families like the JCT series -- there are several users I'd wish them upon ];-) (Think any of the UN-spec'd disks could compete ?-) ]==========================================================6/26/89=========== | CAP = CAPACITY IN FORMATTED MEGABYTES | CYC = MAXIMUM NUMBER OF CYLINDER | H = NUMBER OF DATA HEADS | RWC = START REDUCED WRITE CURRENT | IF IT'S = CYC + 1 THEN IT IS NOT USED | WPC = START WRITE PRECOMP | IF IT'S = CYC + 1 THEN IT IS NOT USED | ENC = ENCODING METHOD R=RLL, M=MFM | RATE = TRANSFER RATE IN MEGABITS/SEC | ACCESS= AVERAGE ACCESS TIME | SPT = SECTORS/TRACK X 512 bytes | FH = FULL HIGH FORM FACTOR | HH = HALF HIGH FORM FACTOR | R = RLL (run length limited) | N = NRZ (non return to zero) | M = MFM (modified frequency modulation) | SA = STAND ALONE | Z = ZBR ============================================================================== ALPS ELECTRIC 800-950-2557 ------------------------------------------------------------------------------ MODEL ST+506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS DRND-10A 3.5" 10 615 2 616 616 M 5 60 MS 17 DRND-20A 3.5" 20 615 4 616 616 M 5 60 MS 17 ============================================================================== AMPEX 213-640-0150 OR 800-231-1036 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS PYXIS+7 5.25 FH 5 320 2 132 132 M 5 90 MS 17 PYXIS-13 5.25 FH 10 320 4 132 132 M 5 90 MS 17 PYXIS-20 5.25 FH 15 320 6 132 132 M 5 90 MS 17 PYXIS-27 5.25 FH 20 320 8 132 132 M 5 90 MS 17 ============================================================================== ATASI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 3020 17 645 3 320 320 M 5 17 3033 28 645 5 320 320 M 5 17 3046 39 645 7 320 320 M 5 17 3051 43 704 7 359 350 M 5 17 3053 44 733 7 350 - M 5 17 3075 67 1024 8 1025 1025 M 5 17 3085 67 1024 8 - 512 M 5 17 ============================================================================== BASF ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 6185 23 440 6 220 220 M 5 17 6186 15 440 4 220 220 M 5 17 6187 8 440 2 220 220 M 5 17 ============================================================================== BULL ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS D+530 25 987 3 988 988 M 5 17 D-550 43 987 5 988 988 M 5 17 D-570 59 987 7 988 988 M 5 17 ============================================================================== C. ITOH 800-227-0315 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS YD+3530 32 731 5 732 732 M 5 17 YD-3540 5.25 HH 45 731 7 732 732 M 5 26 MS 17 ============================================================================== CARDIFF ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS F+3053 3.5" 44 1024 5 + + M 5 20 MS 17 ============================================================================== C D C 612-853-8100 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS BJ7D5A 77731614 5.25 FH 23 670 4 671 128 M 5 17 BJ7D5A 77731608 5.25 FH 29 670 5 671 128 M 5 17 BJ7D5A 77731613 733 5 734 128 5 17 94155-21 WREN-1 5.25 FH 21 697 3 698 128 M 5 28 MS 17 94155-25 24 697 4 698 128 M 5 17 94155-28 24 697 4 698 128 M 5 17 94155-36 WREN-1 5.25 FH 36 697 5 698 128 M 5 28 MS 17 94155-38 31 733 5 734 128 M 5 17 94155-48 WREN-2 5.25 FH 40 925 5 926 128 M 5 28 MS 17 94295-51 WREN-2 5.25 FH 43 989 5 990 128 M 5 28 MS 17 94155-57 WREN-2 5.25 FH 48 925 6 926 128 M 5 28 MS 17 94155-67 WREN-2 5.25 FH 56 925 7 926 128 M 5 28 MS 17 94155-77 WREN-2 64 925 8 926 128 M 5 17 94155-85 WREN-2 5.25 FH 71 1024 8 1025 128 M 5 28 MS 17 94155-86 WREN-2 5.25 FH 72 925 9 926 128 M 5 28 MS 17 94205-51 5.25 HH 43 989 5 990 128 M 5 32 MS 17 94335-55 3.5" 46 - 5 - - M 5 25 MS 17 94335-100 3.5" 83 - 9 - - M 5 25 MS 17 94355-55 SWIFT-2 3.5" 46 - 5 - - M 5 16.5 MS 17 94355-100 SWIFT 3.5" 88 1072 9 1073 300 M 5 15 MS 17 ============================================================================== C M I 818-709-6445 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 3426 20 615 4 616 256 M 5 17 5206 5 306 2 307 256 M 5 17 5205 4 256 2 128 128 M 5 17 5410 8 256 4 128 128 M 5 17 5412 10 306 4 307 128 M 5 17 5616 13 256 6 257 257 M 5 17 5619 15 306 6 307 128 M 5 17 6213 11 640 2 641 256 M 5 17 6426 21 640 4 641 256 M 5 17 6640 33 615 6 616 256 M 5 17 7660 50 960 6 961 450 M 5 17 7880 67 960 8 961 450 M 5 17 ============================================================================== COGITO 408-942-8262 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS CG+906 5 306 2 128 128 M 5 CG-912 11 306 4 128 128 M 5 PT-912 11 612 2 307 307 M 5 PT-925 21 612 4 307 307 M 5 ============================================================================== CORE INTNL ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS AT 32 5.25 HH 31 733 5 + + M 5 21 MS 17 AT 30 5.25 FH 31 733 5 - - M 5 26 MS 17 AT 40 5.25 FH 40 924 5 - - M 5 26 MS 17 AT 63 5.25 FH 42 988 5 - - M 5 26 MS 17 AT 72 5.25 FH 72 924 9 - - M 5 26 MS 17 OPTIMA 30 5.25 HH 31 733 5 - - M 5 21 MS 17 OPTIMA 40 5.25 HH 41 963 5 - - M 5 26 MS 17 OPTIMA 70 5.25 FH 71 918 9 - - M 5 26 MS 17 ============================================================================== DISCTRON ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS D+503 3 153 2 + + M 5 17 D-504 4 215 2 - - M 5 17 D-506 5 153 4 - - M 5 17 D-507 5 306 2 128 128 M 5 17 D-509 8 215 4 128 128 M 5 17 D-512 11 153 8 - - M 5 17 D-513 11 215 6 128 128 M 5 17 D-514 11 306 4 128 128 M 5 17 D-518 15 215 8 128 128 M 5 17 D-519 16 306 6 128 128 M 5 17 D-526 21 306 8 128 128 M 5 17 ============================================================================== DMA ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 306 11 612 2 612 400 M 5 17 REMOV. ============================================================================== ELCOH ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS DISCACHE10 10 320 4 321 321 M 5 17 DISCACHE20 20 320 8 321 321 M 5 17 ============================================================================== FUJI 415-651-0811 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS FK305+26 3.5" 21 615 4 + 616 M 5 50+80MS 17 FK305-39 3.5" 32 615 6 - 616 M 5 50-80MS 17 FK309-26 3.5" 21 615 4 - 616 M 5 50-80MS 17 FK301 10 306 4 307 128 M 5 17 FK302-13 10 612 2 613 307 M 5 17 FK302-26 21 612 4 613 307 M 5 17 FK302-39 32 612 6 613 307 M 5 17 FK303-52 3.5" 40 615 8 - 616 M 5 50-80MS 17 ============================================================================== FUJITSU 408-432-1300 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 2230 AS 5 320 2 321 321 M 5 17 2233 AS 10 320 4 321 321 M 5 17 2234 AS 15 320 6 321 321 M 5 17 2235 AS 20 320 8 321 321 M 5 17 2241 AS 26 754 4 755 755 M 5 17 M2226D2 3.5" 30 615 6 - - M 5 35 MS 17 M2227D2 3.5" 40 615 8 - - M 5 35 MS 17 M2242AS2 5.25 FH 43 754 7 - - M 5 30 MS 17 M2243AS2 5.25 FH 67 754 11 - - M 5 30 MS 17 M2243T 5.25 HH 68 1186 7 - - M 5 25 MS 17 ============================================================================== HITACHI 415-872-1902 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS DK301+1 3.5" 10 306 4 + + M 5 85 MS 17 DK301-2 3.5" 15 306 6 - - M 5 85 MS 17 DK511-3 5.25 FH 28 699 5 - - M 5 30 MS 17 DK511-5 5.25 FH 40 699 7 - - M 5 30 MS 17 DK511-8 5.25 FH 67 823 10 - - M 5 23 MS 17 DK521-5 5.25 HH 51 823 6 - - M 5 25 MS 17 ============================================================================== IMI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 5006 5 306 2 307 214 M 5 17 5012 10 306 4 307 214 M 5 17 5018 15 306 6 307 214 M 5 17 ============================================================================== JCT 503-474-5678 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 100 5.25 HH 5 + + + + M 5 110 MS 17 105 5.25 HH 7 - - - - M 5 110 MS 17 110 5.25 HH 14 - - - - M 5 130 MS 17 120 5.25 HH 20 - - - - M 5 100 MS 17 ============================================================================== KALOK CORP. 408-747-1315 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS KL320 OCTAGON 20 3.5" 20 615 4 616 300 M 5 48 MS 17 ============================================================================== KYOCERA 619-576-2600 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS KC20A/ KC20B/ 3.5" 20 616 4 + + M 5 65 MS 17 ============================================================================== LA PINE ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 3522 10 306 4 307 + M 5 17 LT 10 10 615 2 616 - M 5 17 LT 20 20 615 4 616 - M 5 17 LT 200 20 614 4 615 - M 5 17 LT 2000 20 614 4 615 - M 5 17 ============================================================================== MAXTOR 408-432-1700 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS XT+1065 5.25 FH 56 918 7 919 919 M 5 28 MS 17 XT-1085 5.25 FH 71 1024 8 1025 1025 M 5 28 MS 17 XT-1105 5.25 FH 87 918 11 919 919 M 5 27 MS 17 XT-1140 5.25 FH 119 918 15 919 919 M 5 27 MS 17 XT-2085 5.25 FH 74 1224 7 1225 1225 M 5 30 MS 17 XT-2140 5.25 FH 117 1224 11 1225 1225 M 5 30 MS 17 XT-2190 5.25 FH 159 1224 15 1225 1225 M 5 29 MS 17 ============================================================================== MEMOREX ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 321 5 320 2 321 128 M 5 17 322 10 320 4 321 128 M 5 17 323 15 320 6 321 128 M 5 17 324 20 320 8 321 128 M 5 17 450 10 612 2 321 350 M 5 17 512 25 961 3 321 480 M 5 17 513 41 961 5 321 480 M 5 17 514 58 961 7 321 480 M 5 17 ============================================================================== MICROPOLIS 818-709-3300 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 1302 5.25 FH 21 830 3 831 831 M 5 17 1303 5.25 FH 36 830 5 831 831 M 5 17 1304 5.25 FH 43 830 6 831 831 M 5 17 1323 5.25 FH 35 1024 4 1025 1025 M 5 28 MS 17 1323A 5.25 FH 44 1024 5 1025 1025 M 5 28 MS 17 1324 5.25 FH 53 1024 6 1025 1025 M 5 28 MS 17 1324A 5.25 FH 62 1024 7 1025 1025 M 5 28 MS 17 1325 5.25 FH 71 1024 8 1025 1025 M 5 28 MS 17 1333A 5.25 FH 44 1024 5 1025 1025 M 5 28 MS 17 1334 5.25 FH 53 1024 6 1025 1025 M 5 28 MS 17 1335 5.25 FH 71 1024 8 1025 1025 M 5 28 MS 17 ============================================================================== MICROSCIENCE 408-730-5965 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS HH 312 10 306 4 307 307 M 5 17 HH 315 10 306 4 307 307 M 5 17 HH 325 21 612 4 613 613 M 5 80 MS 17 HH 612 11 306 4 307 307 M 5 17 HH 625 21 612 4 613 613 M 5 17 HH 712 5.25 HH 10 612 2 613 613 M 5 105 MS 17 HH 725 5.25 HH 21 612 4 613 613 M 5 105 MS 17 HH 825 5.25 HH 21 615 4 616 616 M 5 65 MS 17 HH 1050 5.25 HH 44 1024 5 1025 1025 M 5 28 MS 17 HH-1075 5.25 HH 65 1024 7 1025 1025 M 5 28 MS 17 HH-1090 5.25 HH 80 1314 7 1315 1315 M 5 28 MS 17 4050 3.5" 44 1024 5 1025 1025 M 5 18 MS 17 ============================================================================== MINISCRIBE 303-651-6000 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 1006 5 306 2 153 128 M 5 17 1012 10 306 4 153 128 M 5 17 2006 5 306 2 307 128 M 5 17 2012 11 306 4 307 128 M 5 17 3053 5.25 HH 44 1024 5 1025 512 M 5 25 MS 17 3085 5.25 HH 71 1170 7 1171 512 M 5 <20 MS 17 3212 5.25 HH 11 612 2 613 128 M 5 85 MS 17 3212 PLUS 5.25 HH 11 612 2 613 128 M 5 53 MS 17 3412 11 306 4 307 128 M 5 17 3425 5.25 HH 21 612 4 613 128 M 5 85 MS 17 3425 PLUS 5.25 HH 21 612 4 613 128 M 5 53 MS 17 3650 5.25 HH 42 809 6 810 128 M 5 61 MS 17 3650F 5.25 HH 42 809 6 810 128 M 5 46 MS 17 4010 8 480 2 481 128 M 5 17 4020 17 480 4 481 128 M 5 17 5330 25 480 6 481 128 M 5 17 5338 32 612 6 613 128 M 5 17 5440 32 480 8 481 128 M 5 17 5451 43 612 8 613 128 M 5 17 6032 5.25 FH 26 1024 3 1025 512 M 5 28 MS 17 6053 5.25 FH 44 1024 5 1025 512 M 5 28 MS 17 6074 5.25 FH 62 1024 7 1025 512 M 5 28 MS 17 6085 5.25 FH 71 1024 8 1025 512 M 5 28 MS 17 6212 10 612 2 613 128 M 5 17 7426 21 612 4 613 128 M 5 17 8212 11 612 2 613 128 M 5 17 8412 10 306 4 307 128 M 5 17 8425 3.5" 21 615 4 616 128 M 5 68 MS 17 8425F 3.5" 21 615 4 616 128 M 5 40 MS 17 ============================================================================== MITSUBISHI 213-515-3993 x460 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS MR521 5.25 HH 10 612 2 + + M 5 85 MS 17 MR522 5.25 HH 20 612 4 - - M 5 85 MS 17 MR535 5.25 HH 42 977 5 300 300 M 5 28 MS 17 ============================================================================== MMI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS M 112 3.5" 10 306 4 + 128 M 5 75 MS 17 BRKT M 106 3.5" 5 306 2 - 128 M 5 75 MS 17 BRKT M 125 3.5" 20 306 8 - 128 M 5 75 MS 17 BRKT M 306 3.5" 5 306 2 - 128 M 5 75 MS 17 BRKT M 212 5.25 HH 10 306 4 - 128 M 5 75 MS 17 M 225 5.25 HH 20 306 8 - 128 M 5 75 MS 17 M 312 5.25 HH 10 306 4 - 128 M 5 75 MS 17 M 325 5.25 HH 20 306 8 - 128 M 5 75 MS 17 ============================================================================== N E C 800-227-9001 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS D3126 3.5" 20 615 4 616 256 M 5 85 MS 17 D5124 5.25 HH 10 309 4 310 310 M 5 85 MS 17 D5126 5.25 HH 20 612 4 613 - M 5 85 MS 17 D5126H 20 612 4 613 - M 5 40 MS 17 D5146 5.25 HH 40 615 8 616 - M 5 85 MS 17 D5146H 5,25 HH 40 615 8 616 - M 5 40 MS 17 ============================================================================== NEWBURY DATA 213-372-3775 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS NDR 340 3.5" 42 615 8 + + M 40 MS NDR 1065 5.25 FH 55 918 7 - - M 25 MS NDR 1085 5.25 FH 71 1025 8 - - M 26 MS NDR 1105 5.25 FH 87 918 11 - - M 25 MS NDR 1140 5.25 FH 105 918 15 - - M 25 MS NDR 2190 5.25 FH 191 918 15 - - M 28 MS ============================================================================== OLIVETTI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS HD662/11 10 612 2 + + M 5 17 HD662/12 20 612 4 - - M 5 17 ============================================================================== OTARI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS C 214 10 306 4 128 128 M 5 17 C 519 15 306 6 128 128 M 5 17 C 526 21 306 8 128 128 M 5 17 ============================================================================== PANASONIC 408-262-2200 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS JU+116 3.5" 20 615 4 616 616 M 5 85 MS 17 JU-128 3.5" 42 733 7 734 734 M 5 35 MS 17 ============================================================================== PRIAM 408-434-9300 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS V+150 42 987 5 988 988 M 5 17 V-160 50 1166 5 1167 1167 M 5 17 V-170 60 987 7 988 988 M 5 17 V-185 71 1166 7 1167 1167 M 5 17 502 46 755 7 756 756 M 5 17 504 46 755 7 756 756 M 5 17 514 5.25 FH 117 1224 11 1225 1225 M 5 22 MS 17 519 5.25 FH 160 1224 15 1225 1225 M 5 22 MS 17 ============================================================================== PTI 805-581-1000 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS PT+225 3.5" 21 615 4 + + M 5 35 MS 17 PT-234 3.5" 28 820 4 - - M 5 35 MS 17 PT-338 3.5" 32 615 6 - - M 5 35 MS 17 PT-351 3.5" 42 820 6 - - M 5 35 MS 17 ============================================================================== QUANTUM 408-262-1100 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS Q+510 8 512 2 256 256 M 5 17 Q-520 18 512 4 256 513 M 5 17 Q-530 27 512 6 256 513 M 5 17 Q-540 36 512 8 256 513 M 5 17 ============================================================================== RICOH SYS ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS RH+5130 10 612 2 613 400 M 5 85 MS 17 RH-5260 10 615 2 - - M 5 85 MS 17 REMOV. ============================================================================== RODIME 407-997-0774 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS RO 101 5.25 FH 6 192 2 96 192 M 5 17 RO 102 5.25 FH 12 192 4 96 192 M 5 17 RO 103 5.25 FH 18 192 6 96 192 M 5 55 MS 17 RO 104 5.25 FH 24 192 8 96 192 M 5 17 RO 201 5.25 FH 5 321 2 132 300 M 5 85 MS 17 RO 201E 5.25 FH 11 640 2 264 300 M 5 55 MS 17 RO 202 5.25 HH 10 321 4 132 300 M 5 85 MS 17 RO 202E 5.25 FH 21 640 4 264 300 M 5 55 MS 17 RO 203 5.25 HH 15 321 6 132 300 M 5 85 MS 17 RO 203E 5.25 FH 32 640 6 264 300 M 5 55 MS 17 RO 204 5.25 FH 21 320 8 132 300 M 5 85 MS 17 RO 204E 5.25 FH 43 640 8 264 300 M 5 55 MS 17 RO 251 5.25 HH 5 306 2 307 307 M 5 85 MS 17 RO 252 5.25 HH 11 306 4 64 128 M 5 85 MS 17 RO 351 5 306 2 307 307 M 5 85 MS 17 RO 352 3.5" 11 306 4 64 128 M 5 85 MS 17 RO 365 3.5" 21 612 4 613 613 M 5 17 RO 3045 37 872 5 873 - M 5 28 MS 17 RO 3055 45 872 6 873 - M 5 28 MS 17 RO 3065 53 872 7 - - M 5 28 MS 17 RO 5065 5.25 HH 63 - 5 - - M 5 28 MS 17 RO 5090 5.25 HH 89 1224 7 - - M 5 28 MS 17 ============================================================================== SEAGATE 800-468-3472 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENT ST125 3.5" 21 615 4 616 616 M 5 40 MS 17 ST125-1 3.5" 21 615 4 616 616 M 5 28 MS 17 ST138 3.5" 32 615 6 616 616 M 5 40 MS 17 ST138-1 3.5" 32 615 6 616 616 M 5 28 MS 17 ST151 3.5" 42 977 5 978 978 5 24 MS 17 ST206 5.25 FH 5 306 2 307 128 M 5 17 ST212 5.25 FH 10 306 4 307 128 M 5 17 ST213 5.25 FH 10 615 2 613 307 M 5 17 ST225 5.25 HH 21 615 4 616 616 M 5 65 MS 17 ST251 5.25 HH 42 820 6 821 822 M 5.0 40 MS 17 ST251-1 5.25 HH 42 820 6 821 821 M 5.0 28 MS 17 ST406 5.25 FH 5 306 2 307 128 M 5 17 ST412 5.25 FH 10 306 4 307 128 M 5 17 ST419 5.25 FH 15 306 6 307 128 M 5 17 ST425 5.25 FH 21 306 8 307 128 M 5 17 ST506 5.25 FH 5 153 4 128 128 M 5 17 ST706 5.25 FH 5 306 2 307 128 M 5 17 ST4026 5.25 FH 21 615 4 616 307 M 5 17 ST4038 5.25 HH 38 733 5 734 367 M 5 40 MS 17 ST4051 5.25 FH 42 977 5 978 498 M 5 40 MS 17 ST4053 5.25 FH 44 1024 5 1023 1023 M 5 28 MS 17 ST4096 5.25 FH 80 1024 9 1023 1023 M 5 28 MS 17 ============================================================================== SHUGART ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 604 5 160 4 128 128 M 5 17 606 7 160 6 128 128 M 5 17 612 11 306 4 307 128 M 5 17 706 6 320 2 321 128 M 5 17 712 11 320 4 321 128 M 5 17 ============================================================================== SYQUEST 415-490-7511 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS SQ 306RD 5 306 2 307 307 M 5 17 REMOV. SQ 312RD 10 615 2 616 616 M 5 17 REMOV. SQ 325F 20 615 4 616 616 M 5 17 SQ 338F 30 615 6 616 616 M 5 17 SQ 340AF 38 640 6 616 616 M 5 17 ============================================================================== TANDON WD 805-523-0340 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS TM 252 10 306 4 307 307 M 5 17 TM 261 10 615 2 616 616 M 5 17 TM 262 21 615 4 616 616 M 5 17 TM 361 10 615 2 616 616 M 5 17 TM 362 21 615 4 616 616 M 5 17 TM 501 5 306 2 128 153 M 5 17 TM 502 10 306 4 128 153 M 5 17 TM 503 15 306 6 128 153 M 5 17 TM 703 10 733 5 734 734 M 5 17 TM 755 5.25 43 981 5 982 982 M 5 17 TM 3085 71 1024 8 1024 1024 M 5 37 MS 17 TM 6025 10 153 4 128 128 M 5 17 TM 6035 10 153 6 128 128 M 5 17 TM 6035E 21 230 6 128 128 M 5 17 ============================================================================== TEAC ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS SD 510 10 306 4 128 128 M 5 17 SD 520 20 615 4 128 128 M 5 17 ============================================================================== TEXAS INSTRUMENT ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 5.25 FH 5 153 4 64 64 M 5 17 ============================================================================== TOSHIBA 408-727-3939 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS MK53FA 5.25 FH 43 830 5 831 831 M 5 30 MS 17 MK 54FA 5.25 FH 60 830 7 831 831 M 5 30 MS 17 MK 56FA 5.25 FH 86 830 10 831 831 M 5 30 MS 17 MK134FA 3.5" 44 733 7 734 734 M 5 25 MS 17 ============================================================================== TULIN 408-432-9025 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 213 10 640 2 656 656 M 5 17 226 22 640 4 656 656 M 5 17 240 33 640 6 656 656 M 5 17 326 22 640 4 641 641 M 5 17 340 33 640 6 641 641 M 5 17 ============================================================================== VERTEX 408-946-4600 (SEE PRIAM) ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS V130 26 987 3 988 988 M 5 17 V150 43 987 5 988 988 M 5 17 V170 60 987 7 988 988 M 5 17 ============================================================================== WESTERN DIGITAL 800-777-4787 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS WD 262 3.5 to 5.25 HH 20 615 4 616 616 M 5 80 MS 17 BRKT WD 362 3.5" 20 615 4 616 616 M 5 80 MS 17