ag@moss.ATT.COM (09/08/88)
I noticed that Radio Shack has a Tandy 1000 (ex?) 3.5" disk drive on
sale for $99. Does anyone have any information about interfacing this
to a CoCo (for OS9)? I have a J&M Controller, and two 5.25" disk drives,
but I am willing to give up my drive 1 if I can get this working.
The sale ends soon, so I don't have much time....
Thanks in advance.
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-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=cww@ndmath.UUCP (Clarence W. Wilkerson) (09/12/88)
These use a non-standard combination power-signal cable meant for the 100tx model. The toshiba 3.5" drive kit is available in this price range from eletro-tek in Chicago, and has standard power connectors and 34-pin card edge. This should be a direct replacement form a 5.25 inch half height. You will have to redo your disk parameter tables to take advantage of the new drive ( 2 sides, 80 tracks, 18 sectors/track ). .
knudsen@ihlpl.ATT.COM (Knudsen) (09/13/88)
In article <32776@clyde.ATT.COM>, ag@moss.ATT.COM writes: > I noticed that Radio Shack has a Tandy 1000 (ex?) 3.5" disk drive on > sale for $99. Does anyone have any information about interfacing this > to a CoCo (for OS9)? I have a J&M Controller, and two 5.25" disk drives, > but I am willing to give up my drive 1 if I can get this working. Say Ag, I was going to post the same damn thing but you saved me the trouble. It appears this drive is exactly a DS-80T, and in a nice little case it's a steal at that price, tho I guess you have to feed it some power (not much current tho). I'd say go for it, but then I talked you into Coco 3 in the first place so you won't listen to me, right?
tim@scsmo1.UUCP (09/13/88)
It's been a long time since I added a non standard drive to the coco, but the cable is simple it should be the same, but you may have to change the select jumpers so the drive is selected at the right time. You also need to chage the D0 device header (you can use the assembler to make a nice description file or use the debugger) If you want to use both sides, you will need something like the fdiks or other utilitys that will allow you to format both sides of the disk. I had a 720K drive as physcal drive 1, OS9 drive D0, and coco-dos drive 1, this allowed be to boot off of the standard coco drive and then run OS9 off of the 720K drive. You have to change DISKMAN (something like that) to get this to work. Look for the string 01, 02, 04, 40 in the disk code. If you have an questions about this, contact me, and I will look up the details. tim hogard uunet!fw05!scsmo1!tim ihnp4!occrsh!scsmo1!tim
neals@tekigm2.TEK.COM (Neal Sedell) (09/13/88)
I was in the local 'Shack last weekend, and the salesperson, who seemed to be reasonably competent (even if my spelling isn't), indicated that they can NEVER get the 3.5" drive and doesn't know why they keep advertising it.... I had been contemplating getting one too, to use with my COCO and XT, but it looks as if I don't have to worry about it anymore. Better see if you can even get one!!! -- Neal Sedell
bdw@rwing.UUCP (Brian Wright) (09/16/88)
Is there a good source for 3.5" media? I'm currently purchasing 5.25"
floppies for $.35 apiece. Who has the best deal on 3.5" floppies in
bulk rates?
--
Brian Wright
UUCP: {backbones}!uw-beaver!tikal!toybox!rwing!bdw
" "!camco!eskimo!bdw
"I'd buy that for a dollar!" --Robocopjonh@tekgen.BV.TEK.COM (Jon Howell) (09/18/88)
In article <360@rwing.UUCP> bdw@rwing.UUCP (Brian Wright) writes: > >Is there a good source for 3.5" media? I'm currently purchasing 5.25" >floppies for $.35 apiece. Who has the best deal on 3.5" floppies in >bulk rates? I intend to buy mine from MEI. I've gotten great 5.25's there for $.25 (lot of 200, $.27 in lots of 100). The last ad I've got says 3.5" disks are $.89 (ssdd) or $.99 (dsdd), lots of 50. I've had great luck with the 5.25s, which come with sleeves. Also, they have 70x5.25 or 40x3.5" disk holders, $3.95 in lots of two+. Labels are cheap--5.25, 100/$2.00; 3.5, 50/$1.50 (No I don't work there, I just like their service!) [My ad says expires Mar 15, 88, but every ad we've gotten since we heard of them has had only successively lower prices.] Phone: 1-800-634-3478 USnail: MEI 1100 Steelwood Road Columbus, Ohio 43212-9972 --Jon -- ...!tektronix!tekgen!jonh (503) MAK-SEMA Jon Howell o o o o o o o o // // // _ _ _ _ . . . . ___ . _ -|--|--|--|--|--|--|--|- // // // / / \ / / \ |\/| |\ |\ | | |\ / /> /> /> /> /> /> /> /> // // // \_\_/ \_\_/ | | |"\ | \| _|_ |"\ \_ <Disclaimers never fit int