Re: Apple Disk Drive - Hardware Mod Question

["Thelbane" <ihatespam@noemail.com>]

Thanks for the detailed instructions.  I have a friend who can help me with
this (and let me borrow some tools).

-Thel

"Mark Cummings" <NOTfigjams@primus.com.au> wrote in message
3b122422@news.iprimus.com.au">news:3b122422@news.iprimus.com.au...
> To elaborate on what Wayne has said, this is my attempt at a diagram to
help
> explain it...
>
> You need a SPDT "Centre Off" (mini) toggle switch. It looks a bit like
this
> (the centre pin is common)...
>
>     ----
> O==|    |
> O==|    |]=====O
> O==|    |
>     ----
>
> Wire it in like this...
>
>         existing internal drive Write Protect Switch
>                                  |
>                                  V     O open
>     existing wire(~)       common
> ~~~~~~~~~~~~~+~~~~~~X~~~~~~+~~~~~O----->O~~~~~+~~~~~~~~~
>              |     cut     |        closed    |
>              |             |                  |
>              |             |                  |
>              |             |                  |
>              |             |                  | new wire (-)
>              |             O normal           |
>              |                                |
>              ----------O---->  protect        |
>                 common                        |
>                            O-------------------
>                               enable
>
> Of course this would be for the old Disk ][ drive, the newer Apple 5.25
> drives use opto-couplers, so I'm not sure how that would be wired up.
> Probably in a similar fashion.
>
> How does this look to you Wayne ???
>
> Mark
>
>
> Thelbane wrote in message
> <0odQ6.38333$y_3.12405242@typhoon.austin.rr.com>...
> >I don't know if I'm electronically savvy enough to pull off the
> installation
> >of a three-position switch, but I should be able to rig something up
> that'll
> >work.  I guess I just need to take a good look inside the case... it'll
> >probably easier than I thought.
> >
> >Thanks for the info.
> >
> >-Thel
> >
> >"Wayne Stewart" <waynes@intergate.bc.ca> wrote in message
> >3B1154F7.85F726D5@intergate.bc.ca">news:3B1154F7.85F726D5@intergate.bc.ca...
> >>
> >>
> >> Thelbane wrote:
> >>
> >> > Has anyone modified an internal or external Apple II drive so that it
> >can
> >> > write to write-protected disks?  If anyone has done this or knows how
> to
> >do
> >> > it, I'd appreciate your help before taking a crack at it myself.
> >> >
> >> > "Why the hell would you want to do that?  Just use a hole-puncher on
> the
> >> > disk!" you say...
> >>
> >> Just bypass the write protect switch. In a Disk II, switch open is
write
> >> protected
> >> and of course closed is write-enabled. If you wired in a 3 position
> toggle
> >> switch
> >> you could easily set up write protected, write enabled & normal
> >>
> >> Wayne
> >>
> >
> >
>
>