User`s guide

The mods mentioned above are not difficult, especially if you swap in a PC

cable. If you want to be able to use the stick on an Apple II, then some kind of

switching will be required.

Apple II Joystick

(9-pin male connector) (Old 16-pin IC-style plug)

[2]--------------- +5V ------- 1

[7]--------------- Button 0 ------- 2

[5]--------------- X-axis ------- 6

[8]--------------- Y-axis ------- 10

[1]--------------- Button 1 ------- 3

[3]--------------- Ground ------ 8

PC Joystick

(15-pin male connector)

[1]--------------- +5V

[2] -------------- Button 0

[3] -------------- X-axis

[6] -------------- Y-axis

[7] -------------- Button 1

[4] and/or [5] Ground

Both sticks tie one end of each X, Y potentiometer to +5 and send the

center (wiper) to the an output. (Or the wiper may go to +5V and an end to the

output; it doesn't much matter.) The standard Apple II pot is 150K Ohms; most

PC sticks use 100k Ohm pots.

The buttons are wired differently.

On the Apple II stick (see below), each button switch goes to +5V. The

other end goes to GND through a resistor (one resistor for each button). A

button's Output is from the junction of the switch and its resistor. When the

button switch is not closed, its Output is near 0V (=logic 0). Pressing a

button sends +5V to the output (= logic 1).

+5V

X Button Switch

|_____Button output to Apple (Press => "1")

Z 680 Ohm resistor

GND