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Re: Need Joystick for GS
From: Edhel Iaur <drsmooth@baldcom.net>
Reply to: Edhel Iaur
Date: Wed, 07 Aug 1996 04:04:31 -0400
Organization: ART MATRIX - LIGHTLINK
Newsgroups:
comp.sys.apple2
Followup to: newsgroup(s)
References:
<31FD8EC2.6EBA@inlink.com>
<4tpsn1$rno@newsbf02.news.aol.com>
<3202CF83.130A@inlink.com>
<dempson-0608962319210001@dempson.actrix.gen.nz>
David Empson wrote:
>
> In article <3202CF83.130A@inlink.com>, "Doug S." <dougs@inlink.com> wrote:
>
> >RUBYWAND wrote:
> >>
> >> Finding a good quality new Apple II joystick could be difficult. If
> >> you build a PC-to-Apple converter you can walk into any computer-stuff
> >> shop and pick out the PC stick you want.
> >>
> >> Rubywand
> >
> >Can anyone supply me with the pinout info for converting a PC joystick to
> >Apple II?
>
> It needs more than simply rewiring the joystick. The PC and Apple II
> joysticks use different resistances, so you need to add four capacitors to
> compensate.
>
> The switch is also wired to connect to the opposite power rail. A little
> careful experimentation may be needed to verify that the joystick is not
> attempting to use the power rail for something unexpected, and if not,
> then you can wire up the "wrong" power rail to get the button to work.
>
> I don't have the exact details handy (and I'm not likely to be able to
> find them - I'd have to work it out again from the circuit diagrams).
>
> --
> David Empson
> dempson@actrix.gen.nz
> Snail Mail: P.O. Box 27-103, Wellington, New Zealand
3-button Gravis joysticks are available from The Arc (1-800-753-0114).
Here is the conversion info, even tho I've never tryed it, myself:
From: rubywand@aol.com (RUBYWAND)
Newsgroups: comp.sys.apple2
Subject: Re: Joysticks for Newbie? IIc and IIe.
Re question: What joystick can I use on a IIc and where can I buy one?
Same for a IIe. ...
When John Dobbins emailed a question about stick wiring, it suddenly
dawned upon me that I've never seen a modern, pure PC stick converted
for
use on an Apple II or a "PC-to-Apple converter cable". It seemed like a
good idea to actually try building a converter cable.
My PC stick is a standard CH Products "FlightStick". A resistance
measurement produced a disconcerting revelation: the X and Y pots
top-out
around 100K Ohms-- 50K less than a standard Apple II stick! Fortunately,
you can compensate for the difference just fine by adding a bit of
capacitance. The finished converter is shown below:
To PC Stick To Apple II
(15-pin female connector) (9-pin male connector)
[1] and [4] ------------------------------ [2] +5V
[2] --------------------------------------------[7] Button 1
[3] --------------------------------------------[5] X-axis
[6] --------------------------------------------[8] Y-axis
[7] --------------------------------------------[1] Button 2
[3] Ground
add 680 Ohm resistor between [7] & [3]
add 680 Ohm resistor between [1] & [3]
add .01 uF cap between [5] & [3]*
add .01 uF cap between [8] & [3]*