SKU: 37224027773

Hand Start Crank AC/DC Generator Electromagnetics Scientific Physical Toy

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Description

Hand Start Crank AC/DC Generator Electromagnetics Scientific Physical ToyHand Start Crank AC DC Generator Electromagnetics Scientific Physical ToyFeatures:. Mainly composed of stator, rotor, brush, rotating mechanism, base plate, etc. . Demonstrate the working principle of the single phase alternator: first contact the two brushes with the copper ring, and rotate the rotor (armature) to make the coil move in the magnetic field. If the coil is combined with the external circuit power generation board, it is closed Circuit,

Hand Start Crank AC/DC Generator Electromagnetics Scientific Physical Toy

Features:


.Mainly composed of stator, rotor, brush, rotating mechanism, base plate, etc.

.Demonstrate the working principle of the single-phase alternator: first contact the two brushes with the copper ring, and rotate the rotor (armature) to make the coil move in the magnetic field. If the coil is combined with the external circuit power generation board, it is closed Circuit, that is, the output of sinusoidal alternating current that changes periodically with time. If you connect a galvanometer in series with the circuit and slowly rotate the armature, you can see that the magnitude and direction of the alternating current generated periodically change

.Demonstrate the working principle of a single-phase DC generator: During the demonstration, the two brushes and two half-copper rings should be contacted respectively, and the armature is rotated. The alternating current generated in the coil is rectified by the copper half-ring to obtain direct current. At this time, the red light is on, the green light is off or the green light is on, and the red light is off. If you connect an ammeter in series with the circuit, you can see the DC output at this time
.Suitable for children over 8 years old
.Technical Indicators:

1. When the rotor speed is 1200-1600/min, the output voltage of the machine, no-load current;

2. The voltage is not less than 6V, and the load voltage is not less than 3V, 0, 3A.


.Note:

1. When demonstrating, pay attention to the pressing of the brush and slip ring;

2. When the instrument is not in use, the "O" belt should be removed and stored, and at the same time, be careful not to contact with oil or sun exposure. In order to increase the service life of the belt; always pay attention to the proper lubrication of the bearing.

Specifications:

.Color: As Shown
.Material: MDF + Magnet + Metal + Components
.Product Dimensions: 29.5 x 16.5 x 17.5cm
.Product Weight: 1000g
.Package Dimensions: 30 x 17 x 11cm
.Package Weight: 1450g
.Packing: Carton Box

Package Content:

.1 x Educational Toy

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Exchange/Return Notes
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SKU: 37224027773

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4.3 ★★★★★
Based on 13 reviews
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Tammy Lee Morris
Louisville, US
★★★★★ 1
Don’t waste your money or time!
Color: White, Size: Standard - 4 Panel
Don’t waste your money. The instructions make no sense and the metal poles are either sized wrong for the product or screw holes are incorrectly placed, but no two poles matched in size and placement making it impossible to put this together without the panels being warped. No matter how I tried to switch the poles to see if I had them wrong, they always turned out warped and incorrectly fit. I finally gave up and threw everything out - I wasted $50 on this junk and because I didn’t try to put it together immediately after I bought it, it is way too late for a refund. Lesson learned!
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Reviewed in the United States on October 1, 2025
E
Verified Purchase
Edward Hugee
Louisville, US
★★★★★ 3
Sturdiness
Color: Black, Size: Standard - 4 Panel
Not so sturdy. It worked well for its intended job, but, it has to be secured to the floor for long term use.
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Reviewed in the United States on March 30, 2026
E
Verified Purchase
Edith Appleton
Battle Creek, US
★★★★★ 5
Hide my hot water heater
Color: Grey, Size: Standard - 4 Panel
I used the divider to hide my hot water heater. It's perfect and looks great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
J
Verified Purchase
Janet Lanier
Charlottesville, US
★★★★★ 4
Wobbly but Usable
Color: Grey, Size: Standard - 4 Panel
A bit wobbly, but good enough for the price when you need a solid background for remote work calls.
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Reviewed in the United States on May 6, 2026
L
Verified Purchase
Lateefah
Chelsea, US
★★★★★ 5
Nice and easy to assemble
Color: Black, Size: Standard - 4 Panel
I absolutely love this 4-panel room divider! It was super easy to assemble — I had it set up in just a few minutes. The material isn’t too see-through, which gives just the right amount of privacy while still letting some light through. It does exactly what I needed it to do and looks so clean and sleek in my space. Perfect balance of style and function — highly recommend!
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Reviewed in the United States on November 7, 2025

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