KELVIN® Electronics Kits
  • KELVIN® Bicycle Safety Light

    KELVIN® Bicycle Safety Light

    Build this kit and connect it to your bicycle or place it on your table top or on the wall for a conversation piece. Kit requires [2] AA batteries. Kit does not include an enclosure.

    $11.95
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  • KELVIN® Bicycle Safety Light Assembled Demo

    KELVIN® Bicycle Safety Light Assembled Demo

    Build this kit and connect it to your bicycle or place it on your table top or on the wall for a conversation piece. Requires [2] 'AA' batteries. Does not include enclosure, use #430202. Enough for 10 Students. Teacher Demo Unit, Assembled/Tested.

    $59.95
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  • KELVIN® Bicycle Safety Light Bulk Pack

    KELVIN® Bicycle Safety Light Bulk Pack

    Bulk Pack of 10 Kits As Low As $9.99 Per Kit Build this kit and connect it to your bicycle or place it on your table top or on the wall for a conversation piece. Requires [2] AA batteries. Does not include enclosure, use...

    $99.95
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  • KELVIN® Big Ear Assembled Demo

    KELVIN® Big Ear Assembled Demo

    Amplify sounds from different sources (far away, birds, conversations. Add a parabolic reflector and hear blocks away. This kit contains all parts necessary tobuild an ultra sensitive listening device. Use a funnel or design your own reflective parabolic...

    $69.95
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  • KELVIN® Big Ear Bulk Pack

    KELVIN® Big Ear Bulk Pack

    Bulk Pack of 10 Kits As Low As $16.00 Per Kit Amplify sounds from different sources (far away, birds, conversations. Add a parabolic reflector and hear blocks away. This kit contains all parts necessary to build an ultra sensitive...

    $160.00
    Add to Cart
  • KELVIN® Big Ear Kit

    KELVIN® Big Ear Kit

    Amplify sounds from different sources from far away, birds, conversations. Add a parabolic reflector and hear blocks away. This kit contains all parts necessary to build an ultra sensitive listening device. Use a funnel or design your own reflective...

    $19.95
    Add to Cart
  • KELVIN® Blinking LEDs Assembled Demo

    KELVIN® Blinking LEDs Assembled Demo

    When you want the attention, put this kit on your shirt-but first, you have to assemble and test it! This kit demonstrates how to blink two LEDs with common electronic components such as capacitors and resistors. Requires a 9V battery. Teacher Demo Unit,...

    $49.95
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  • KELVIN® Blinking LEDs Bulk Pack

    KELVIN® Blinking LEDs Bulk Pack

    Bulk Pack of 30 Kits As Low As $1.95 Per Kit When you want the attention, put this kit on your shirt but first, you have to assemble and test it! This kit demonstrates how to blink two LEDs with common electronic components such as...

    $58.50
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  • KELVIN® Blinking LEDs Kit

    KELVIN® Blinking LEDs Kit

    When you want the attention you deserve, put this kit on your shirt, but you have to assemble and test it! This kit demonstrates how to blink 2 LEDs with common electronic components, i.e. transistors, capacitors, resistors. Requires 9VDC battery.

    $3.95
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  • KELVIN® Continuity Tester Bulk Pack

    KELVIN® Continuity Tester Bulk Pack

    Bulk Pack of 20 Kits As Low As $2.95 Per Kit Don't be fooled by the low price - this is a real test instrument with LED light only.  When troubleshooting a circuit, this kit would be a great tool to test for continuity in a circuit...

    $88.50
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