Re: Apple II paddles

["Michael J. Mahon" <mjmahon@aol.com>]

The Wizard of Oz wrote:
> On Thu, 29 Jun 2006 23:29:40 -0700, spacealbum wrote these words of
> wisdom:
>
>
> > If one looks at the 1977 Simplicity is the ultimate sophistication
> > brochure (-> for example at  http://kelleyad.com/histry.htm ) I
> > wondered what these strange handcontrollers are. They are not the type
> > with the round knob but seem to have a small stick that can be moved
> > back and forth.
> > Does anybody have an idea???
>
>
> 	The others will be able to supply you with details of the specific parts.
> The construction looks as though it is built on a slide potentiometer
> rather than a rotary one. I saw something similar when I disassembled a
> home made mixing board in the early 80's.

Actually, the sticks appear to come out at an angle when displaced
to either end of their range.  I suspect just a pot turned sideways
with a control rod attached to the shaft.

(Of course, the value of the pot must be selected so that about 60
degrees of movement produces about 0-150K resistance variation.  A
500K linear taper pot should do nicely.)

-michael

Parallel computing for 8-bit Apple II's!
Home page:  http://members.aol.com/MJMahon/

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