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BOB-13099 SparkFun Rotary Switch Potentiometer Breakout
US$5.65
This is a small board the allows you to add resistors to a 10-position rotary switch (COM-13253), turning it into a potentiometer with 10 discrete steps.
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FH125 Panel Mount Fuseholder for GMA/GDL fuses
US$1.18
Fuseholder with screw cap for European GMA/GDL (20mm x 5mm) fuses. Fuse not included.
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TEM01071B G1/4" Water Flow Sensor
US$15.33
This consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow.
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RKA-7DZ-12 Relay, 12VDC, 5A, DPST-NO
US$13.99
Type: Miniature PCB Relay. DC Coil Voltage: 12 V. Maximum AC Voltage Rating: 240 V. Relay Construction: Non-Latching. Contact Material: Silver Nickel. Maximum DC Voltage Rating: 24 V.
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2424-ADA Automotive Gauge Stepper Motor - x27.168
US$13.93
They have extremely fine step precision of about 1/2 a degree per step for single stepping, fast response for quick movements, and a range of  ~315° degrees.
Delivery within 2-3 weeks
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ROB-12779 EasyDriver - Stepper Motor Driver A3967
US$25.15
The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse (or 0 to 3.3V pulse if you solder SJ2 closed on the EasyDriver). It requires a 6V to 30V supply to power the motor and can power any voltage of stepper motor.
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PBS-190 Momentary Tactile Pushbutton Switch
US$0.69
This breadboard friendly Tactile Momentary Pushbutton Switch is excellent for your electronic projects.
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DFR0332 Fan Module
US$6.25
Make an air aerial propeller vessel, a cooling system, or spinning machine with this small fan module. It comes with a propeller, a 15,000 rpm motor and cable. Add flavor to your own interesting projects with this module.
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COM-13247 Magnetic Door Switch Set
US$5.53
Dimensions: 34 × 41 × 6.5 mm. Includes: 1x Magnetic Door Switch Set. 4x Phillips Mounting Screw. Features: Max Voltage: ≤100VDC. Max Current: ≤500mA. Max Rating: ≤10W. Gap: 20±5mm. Contact Mode: NO/NC.
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2676-POLOLU 25D mm Metal Gearmotor Bracket Pair
US$10.43
These aluminum gearmotor brackets let you securely mount Pololu’s 25D mm metal gearmotors to your project. 
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COM-13253 Rotary Switch - 10 Position, single pole
US$3.47
This is a single pole, 10 position rotary switch able to select up to 10 different states in a durable package. Unlike our other rotary switch, this model is much more robust and capable of handling larger currents and voltages.
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2275-POLOLU 75:1 130RPM Metal Gearmotor 25Dx54L mm HP with 48 CPR Encoder
US$51.73
This cylindrical, 2.62" x 0.98" x 0.98" gearmotor uses a brushed DC motor with extra-strong magnets and a 74.83:1 metal gearbox to deliver a lot of power in a relatively small package.
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SSW-130-L DPDT ON-ON Large Solder Slide Switch
US$1.33
MTG Screw Holes L = 1" (25mm). MTG Screw Holes Dia = .01" (2.5mm). Body L = 0.875" (22.2mm). Body W = 0.50" (12.7mm). Top Bezel L = 1.375" (35mm). Top Bezel W = 0.50" (12.7mm). Overall Depth = 0.5" (12.7mm).
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DS-13 SPDT ON-ON Mini Slide Switch
US$0.69
ON-ON. SPDT. 3 pin R/A. 6A@120VAC/28VDC.
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1935-ADA Wired Miniature Electret Microphone
US$1.90
That's one tiny microphone! At about the size of a mature aphid, this wired Electret Microphone is perfect for your FONA. Diameter: 4.4mm. Wire Length: 67mm. Weight: .17g.
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173 - 187
181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
189 - 203