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View Full Version : Lack of write protect tabs



k2x4b524[
April 9th, 2010, 07:12 PM
i've a maybe dumb question, i'm starting to go through my cache of 3.5" 720kb disks "around 1500 of them" and most of the don't have write protect tabs. I paid 10$ for 3 boxes of 500 each, mac and such, but most of the unlabeled ones, have no write protect tabs.. Did i get boned?

Chuck(G)
April 9th, 2010, 07:21 PM
Not necessarily. Sounds like you picked up some suplus duplicator stock (which is proably why they were cheap). Use an opaque sticky label over the WP holes and you should be fine.

k2x4b524[
April 10th, 2010, 08:50 AM
Awesome, thank you

Dwight Elvey
April 10th, 2010, 09:01 AM
Not necessarily. Sounds like you picked up some suplus duplicator stock (which is proably why they were cheap). Use an opaque sticky label over the WP holes and you should be fine.

Hi
Most all 3.5 drives use a mechanical sensing, unlike 8 and 5.25 drives.
This means that even a piece of clear tape will work fine.
Dwight

Chuck(G)
April 10th, 2010, 09:07 AM
Good point, Dwight. And a mechanical sensor requires only one side of the jacket to be covered.

Somewhere here, I have a box of 3M 8" floppies with transparent red write-enable tabs. They don't work on a Qume 8" drive that I have--you have to use opaque ones.

Dwight Elvey
April 10th, 2010, 06:49 PM
Hi
I've found that most of my original write tabs have dried out
adhesive. I've gone to using a small square of foil and magic
mending tape ove it. It seems to hold up at least as well
as the original adhesive.
Dwight

Chuck(G)
April 10th, 2010, 06:57 PM
I've got a package of Avery foil labels about the right size. They seem to work just fine.

Fredbug
April 12th, 2010, 07:53 PM
I cut a piece of black electrical tape for tabs. Also good for temporary
eprom covers.

Bruce

Dwight Elvey
April 12th, 2010, 08:39 PM
I cut a piece of black electrical tape for tabs. Also good for temporary
eprom covers.

Bruce

Hi
I shutter to think what would happen if it caught on the way out
and peeled off.
Dwight

Fredbug
April 12th, 2010, 10:32 PM
Hi
I shutter to think what would happen if it caught on the way out
and peeled off.
Dwight

I find 'QUALITY' tape that is cleanly cut sticks fine. I
also tend to value the data/drive enough to LOOK
at the disk before I insert it.

Bruce

Chuck(G)
April 13th, 2010, 07:37 AM
I find 'QUALITY' tape that is cleanly cut sticks fine. I
also tend to value the data/drive enough to LOOK
at the disk before I insert it.

I hate electrical tape. In another life, I used many rolls of Slipknot Grey (I think it's called Premium 111 now), which was probably considered to be about as premium as you could get. After a couple of years, when I'd revisit connections, they were always a sloppy sticky mess where the adhesive had crept everywhere. I'd never use the stuff anywhere near a disk drive.

Don't get me wrong--vinyl tape was a great improvement over the combination of rubber and friction tape (although the rubber tape probably lasts longer), but there's a place for everything.

k2x4b524[
April 13th, 2010, 02:22 PM
i'm thinking about getting some epoxy putty and putting painters tape on one side of the hole, then filling it in, once the epoxy is hardened and dry, peeling the tape off. it's tedious, but that way i can do a batch of about 20 or 30 disks, more if needed

Ole Juul
April 13th, 2010, 03:30 PM
i'm thinking about getting some epoxy putty and putting painters tape on one side of the hole, then filling it in, once the epoxy is hardened and dry, peeling the tape off. it's tedious, but that way i can do a batch of about 20 or 30 disks, more if needed
I find the whole tape thing a bit tedious. I never used it with the 5.25 disks. What I did was simply install a switch on the front of my drive provide that function. It's just a matter of two wires so not a lot of skill needed here. To me that's how it should be anyway. That way you can't write to _any_ disk unless you put it in that mode so it's generally safer. This fix is certainly a lot quicker and easier than using epoxy!

linuxlove
April 13th, 2010, 04:14 PM
I find the whole tape thing a bit tedious. I never used it with the 5.25 disks. What I did was simply install a switch on the front of my drive provide that function. It's just a matter of two wires so not a lot of skill needed here. To me that's how it should be anyway. That way you can't write to _any_ disk unless you put it in that mode so it's generally safer. This fix is certainly a lot quicker and easier than using epoxy!

And you don't run the risk of solidifying the disk media inside.

cosam
April 14th, 2010, 12:34 AM
What I did was simply install a switch on the front of my drive provide that function. It's just a matter of two wires so not a lot of skill needed here. To me that's how it should be anyway. That way you can't write to _any_ disk unless you put it in that mode so it's generally safer.
Only problem with that would be that it's then easier to inadvertently scribble on original disks which have the WP tab completely removed. Not that anyone works with original media, of course, only ever with backup copies... ;-)

Ole Juul
April 14th, 2010, 01:31 AM
Only problem with that would be that it's then easier to inadvertently scribble on original disks which have the WP tab completely removed. Not that anyone works with original media, of course, only ever with backup copies... ;-)
Yes, it works both ways. :)

k2x4b524[
April 14th, 2010, 02:57 PM
ok, so what i should probably do then is get a micro-toggle on off switch, and rig the write protect button on one or two of my 3.5 floppy drives then?

MikeS
April 14th, 2010, 03:37 PM
ok, so what i should probably do then is get a micro-toggle on off switch, and rig the write protect button on one or two of my 3.5 floppy drives then?Use a double-pole switch, add an LED and a resistor and you've got the beginnings of a blinkenlights front panel ;-)

I also have about a thousand 5.25HD disks with no WP notch; I do have and use a notching tool, but I also use a switch since that lets me create write-protected master disks.