Eisco

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US$135.92
This advanced apparatus demonstrates both longitudinal and transverse wave motions. Consisting of a number of eccentric discs supporting a series of metal rods revolving on a handle, transverse waves are obtained. Longitudinal waves are obtained from the bent rods.
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US$83.86
Apparatus is designed to show vibrations in a stretched cord and investigate the relationship between frequency, tension and density. In addition the provision of electrical contacts, opened and closed by the vibrating armature, allow the apparatus to be used as a high speed changeover switch.
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US$308.18
The Ripple Tank is a dual purpose vesatile tank allowing all types of waves and wave motion. Supplied in foam packing and consists of the following components: Ripple Tank 40cm x 40cm. Push fit legs. Rippler motor with eccentric cam, mounted on PVC bar. Three supports for illuminator and the motor unit. Motor hanging clamps. Springs for motor support. Lamp Unit Halogen 6 volts. Hand Stroboscope. Concave Perspex Plate. Convex Perspex Plate. Rectangular perspex Plate. Curved Reflector. Barrier Large. Barrier small. Plastic roller Bar.
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US$7.47
Weight (lb)0.2. Length (in)0.4. Width (in)0.3. Height (in)0.2.
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US$62.72
Plates with matrices of 98 small circular chambers contain an iron rod, which functions as effectively as a plotting compass. The transparent plates can be arranged in various ways including as faces of a cube or as a single large two-dimensional surface. This versatility allows you to show the configuration of magnetic fields in one or two dimensions.
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US$36.31
This apparatus allows students to study the magnetic fields around a wire. A heavy brass wire with terminals is arranged on a clear plastic base. Also included are one each 45mm compass and six each 16mm compasses. Dimensions 7" x 3" x 4".
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US$8.13
The Magnetic Needle Stand is a non-magnetic metal pillar with a carbon steel point on a plastic base with an overall height of 110mm.
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US$62.03
This Circular Coil on a Base allows you to to observe static magnetic fields generated by a constant flowing current which affects the disposition of iron filings. A coil of wire through which a current can be passed is mounted on a plastic base and surrounds a sheet on which iron fillings can be placed. 
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US$34.99
Oersted's Law Apparatus demonstrates the action of electric current on a magnet. Made of a cobalt steel needle 75mm long with agate bearing supported by pivot mounted on a plastic base and surrounded by a rectangle frame of 13 x 5cm fitted with terminals.
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US$97.99

This kit contains all the material required to build six complete motor models. Includes 12 magnets, six armatures, six pieces of mild steel yokes, six support bases, six support shafts, 24 connecting rivets, 12 split pins, one reel of 25 s.w.g., PVC tinned copper wire, two reels of cellotape, 300mm rubber tubing, and instructions.

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US$165.62
The display will show the number of Coulombs deposited into the instrument either by current through a resistance or from a capacitor or from a source of static electricity like a charged plastic rod. A electroscope will deflect its vane but this instrument shows the charge digitally in Coulombs up to 1.999 nano Coulombs.
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US$271.81

This activity set allows students to conduct activities to illustrate electromagnetism, induction and basic transformer experiments. This kit consists of a plastic base, a laminated iron core, mounting fixtures, and six coils protected in a heat resistant film. Topics covered include Lenz' Law, Faraday's Law, how iron cores increase magnetic field strength, and electromagnetic induction itself. This versatile piece of equipment can also be used to teach about how transformers used by power companies carry electrical energy.

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US$111.93
This 6 decade Resistance Box is easy to use with multiple value resistances and 4mm jacks. The EISCO Decade resistance Boxes are a robust solution in any electronics laboratory and ideal for testing circuits with different resistances. The ABS housing allows an easy reading of resistance values and easy changing of resistance values without having to remove them from the circuit.
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US$62.99

EISCO's Bridge Rectifier Box consists of four diodes connected in a bridge circuit used to convert alternating current (AC) input into direct current (DC) output. The unit features a clear circuit diagram as well, so students see the importance of diodes and how to rectify alternating current to direct current. Size: 13 x 8 x 5cm.

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US$360.36
This is safe and steady with a quiet operation. Voltage supplied prolongs operating life. Spring-loaded, totally enshrouded tube sockets eliminate electrical shock hazard. Will accommodate a considerable variation in tube length. Lighted ON/OFF rocker switch provides convenient operation. 115V 60Hz. Output rating: 5000V without spectrum tube; 1000V @10mA with spectrum tube.
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US$26.25
These are straight form Spectrum Tubes with side electrodes and a 50mm long fine capillary tube in the middle with total length of 26 cm. Reveal the spectra of various gases when discharges pass through them. Provide a visual representation of the energy associated with electron transitions within excited atoms and molecules.
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3 - 12