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What's A Gram Weigh?
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What's A Gram Weigh?

About 1/100 of this solid brass 100g cylindrical weight. Measures 1" dia x approx 15/16" tall with a 7/32" ID cup hook at the top. Pretty. Useful for calibrating scales. And accurate to within one percent, which is one reason for this great price, because if it hit 100g on the head every time, we'd be charging you a heck of a lot more.

93558 BRASS WEIGHT
$3.95 EACH

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ADVANCED STUDENT MICROSCOPE
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ADVANCED STUDENT MICROSCOPE

With extra-sturdy construction, international-standard DIN, fully coated eyepiece and objectives, this is an excellent student microscope. It provides good resolution and centering, and maintains focus when objectives are changed. Stage clips, rack stops, smooth positive mechanical movements, built-in illuminator, coarse and fine focus.

  • Magnification: 40X, 100X, 400X, 1000X (oil)
  • Objectives: 4X, 10X, 40X, 100X (oil) springloaded, parfocal, centered achro-matic.
  • Eyepiece: 23mm 10X wide field with pointer.
  • Illumination: Built-in 5 watt flourescent, 110V with condesor.
  • Stage Size: 120mm x 110mm with locked-in stage spring clips.
  • Focusing: Rack and pinion, coarse & fine controls.
  • Weight/Height: 8 lbs/14".
  • Viewing Angle: 45°

    • 93724 1000X ADVANCED STUDENT MICROSCOPE
    $279.00 EACH
     
    Gear Motor
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    Gear Motor

    Open, close or move whatever with this mighty little 3-12VDC 4RPM gear motor designed to operate a vent in a Chrysler product. Draws just 15mA no-load and stalls at 200mA. Output is via a 1/2" dia x 1/2" long sprocketed shaft. The case measures a diminutive 4-1/8" x 3-1/4" x 1" thick with (3) arms with 1/4" mounting holes. No leads, but the gearbox pops open to get into it and there are (2) terminal clips that hit the motor.

    37244 12 VOLT GEAR MOTOR
    $7.95 EACH

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    Gear Motor
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    Gear Motor

    Attention robotics boffins: Here's a nice, powerful 12-24VDC Mabuchi brush motor with a gearbox and pulley attached. At its nominal 24DC, it spins 12rpm, draws 50mA no load, and stalls a 750mA. Has a 3/4" long x 5/16" flattened shaft with a 4-5/8" dia x 5/16" wide (3/16" ID) single-sheave pulley attached, with a matching O-ring. The gearbox measures 2-3/4" x 3" x 9-1/16". The motor measures 1-1/16"dia x 1-5/8" long and comes with 7" leads and a 2-pin Molex connector.

    37837 MOTOR W/PULLEY
    $14.50 EACH

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