Apple Joystick IIe/IIc

Apple Joystick IIe/IIc
Apple Joystick (Model A2M2012)
Manufacturer	Apple Computer, Inc.
Type	Joystick (analog)
Discontinued	1993
Price	US$49
Interface	DE-9 (game port)
Compatible	Apple IIe, Apple IIc, Apple IIc Plus, Apple IIGS
Dimensions	~115 mm × 115 mm × 70 mm (4.5" × 4.5")
Weight	~200 g
Predecessor	Apple II Joystick (A2M2002)
Successor	None
Model	A2M2002, A2M2012

The Apple Joystick (models A2M2002 and A2M2012) was Apple's analog joystick for the Apple IIe, Apple IIc, and Apple IIGS computers. Used primarily for games, the self-centering joystick provided proportional control through two potentiometers.

Models

Apple produced two joystick models with identical external appearance but different model numbers:

Model	Description	Period
A2M2002	Original Apple II Joystick	1983-1985
A2M2012	Apple IIe/IIc Joystick (revised)	1984-1993

The case dimensions appear identical between models. Internal components may vary.

Design

Physical Construction

The joystick features a compact beige plastic housing:

• Square base approximately 4.5" × 4.5" (115 mm × 115 mm)
• Central stick with rounded knob
• Two fire buttons on the base
• Adjustable centering controls on bottom
• Fixed DE-9 cable

Self-Centering Mechanism

The joystick uses spring-loaded centering:

• Springs return the stick to center when released
• Center position represents "no input"
• Trim controls on bottom allow fine adjustment
• Prevents drift in software that relies on neutral position

Analog Operation

Unlike digital joysticks with simple on/off contacts, the Apple Joystick provides proportional control:

• Two potentiometers (approximately 100-150 kΩ)
• Variable resistance indicates stick position
• Allows gradual movement vs. binary direction
• Similar principle to modern analog thumbsticks

Measured potentiometer values vary between units (114k, 118k, 136k observed), requiring calibration for optimal performance.

Connection

The joystick connects via a DE-9 connector:

• Direct connection to Apple IIc and IIc Plus game port
• Requires interface card or adapter for Apple II and II Plus
• Compatible with Apple IIGS

Apple II Compatibility

The packaging stated Apple II compatibility, but this required an adapter. Southern California Research Group sold adapters for:

• Apple II and II Plus connection
• Dual joystick support on Apple IIGS

The green wire present in the cable is unused.

Specifications

Parameter	Value
Model numbers	A2M2002, A2M2012
Dimensions	~115 mm × 115 mm × 70 mm
Weight	~200 g
Potentiometers	~100-150 kΩ (varies)
Buttons	2 fire buttons
Interface	DE-9 connector
Cable length	~1.5 m
Case color	Beige (Apple II matching)
Case material	ABS plastic

Internal Components

Potentiometers

Two potentiometers control X and Y axes:

• Rotary type with gear linkage to stick
• Values observed: 114k, 118k, 136k ohms
• Variation between units may require calibration
• Some Apple IIe units need capacitor adjustment for full range

Buttons

Two momentary switches provide button inputs:

• Standard NO (normally open) contacts
• Connect to Button 0 and Button 1 inputs
• Located on base flanking the stick

Springs

Centering springs provide return force:

• Loaded around the stick pivot
• Force increases with deflection
• Springs can weaken over decades of use

Maintenance

Calibration

Centering adjustments are accessible on the bottom:

1. Locate two trim controls
2. Adjust while monitoring center position in software
3. Small screwdriver required
4. Test in multiple applications

Potentiometer Cleaning

Erratic movement often indicates dirty pots:

1. Open case (screws on bottom)
2. Apply contact cleaner to potentiometer openings
3. Work stick through full range multiple times
4. Allow to dry before reassembly

Spring Replacement

Weak centering indicates worn springs:

1. Disassemble joystick
2. Identify spring type and dimensions
3. Source replacement springs (uncommon)
4. Reassemble with correct tension

Troubleshooting

Problem	Cause	Solution
No response	Cable damage, card issue	Test cable continuity, verify card
Drift from center	Calibration needed	Adjust trim controls
Erratic movement	Dirty potentiometers	Clean with contact cleaner
Limited range	Pot mismatch with system	May require capacitor adjustment
Weak centering	Worn springs	Replace springs (difficult)
Button stuck	Debris, worn switch	Clean or replace switch

Collecting

Condition Assessment

• Mint: Original box, fully functional, clean
• Excellent: Functional, minimal wear
• Good: Functional, cosmetic wear
• Fair: Functional but needs calibration
• Poor: Non-functional or damaged

Original Box

Boxed examples are more valuable. The packaging includes:

• Joystick unit
• Brief documentation
• Apple II compatibility note

3D Printed Reproductions

Due to rising prices, some collectors create 3D printed cases:

• Dimensions available from community measurements
• Original internal components still required
• Considered replicas, not original units

See Also

• Apple IIe
• Apple IIc
• Apple IIGS
• Apple Graphics Tablet

References

• Applefritter community discussions
• The Liberator — joystick disassembly documentation
• Computer History Museum collection records