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Re: Paddles
- Subject: Re: Paddles
- From: adrianw@cassius (Adrian Whichello)
- Date: 1995/10/19
- Distribution: inet
- Newsgroups: comp.sys.apple2
- Organization: Electrical Engineering, University of Sydney
- References: <45rism$e2@gap.cco.caltech.edu> <NEWTNews.813870598.14448.oeefcu@pixiuser.pixi.com> <45vdeo$c0n@acme.freenet.columbus.oh.us>
In article <45vdeo$c0n@acme.freenet.columbus.oh.us> dalloff@freenet.columbus.oh.us (Dave Althoff) writes:
>(Q: Can one obtain Apple ][ paddles)
>
>You could build your own...they are extremely simple. The toughest part
>is finding a 150K-ohm linear potentiometer.
Other values can be used, provided you compensate by changing the 0.022uF
capacitor to maintain the same RC time constant (which is 150Kohms x 2.2nF =
3.3ms with the supplied values). It's easiest to do this be decreasing the R
and then connecting a suitable capacitor from the wiper arm of the pot to
ground in your homebuilt paddle box, to avoid having to replace components on
the Apple motherboard. I did this with a couple of RS joystick controllers
(100Kohm) I picked up for two dollars, by putting in an extra 1.1nF capacitance.
Adrian.