Electromagnetic Wave Mineral Radio Educational Toy
Features:
.Mineral radio refers to a passive radio without amplifying circuit composed of antenna, ground wire, basic tuning loop and geophone
.It is the simplest radio receiving device, mainly used for the reception of medium wave public radio broadcasts. Everyone is accustomed to collectively refer to those radios that do not use a power source and have only one semiconductor element in the circuit as “stone radios”.
.Base length 23 x width 6.5CM, coil diameter 22.5; width 3.5CM, overall height 25CM
.The energy of the rock radio comes from the resonance energy received by the coil, which is already the smallest size of the large-ring no-earth-earth wire rock radio. The electromagnetic wave energy that can be received is limited. If there is no sound in the headset, please find a location with a strong signal to receive the broadcast signal
.Remember to put on headphones and be patient. Can be used for experimental teaching to demonstrate and explain the principle of antenna reception
.At the same time have a certain degree of appreciation, stimulate interest in scientific exploration, and strengthen the cultivation of scientific quality
.Suitable for children over 12 years old or adults
Specifications:
.Color: As Shown
.Material: Plastic + Components
.Product Dimensions: 23 x 6.5 x 25cm
.Product Weight: 1000g
.Package Dimensions: 27 x 25 x 8cm
.Package Weight: 1200g
.Packing: Carton Box
Package Content:
.1 x Radio
.1 x 3.5mm Headset
Fast Shipping and professional packaging
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Note: Orders that contain more than one item are assigned a specific processing period depending on the specific item.
Before shipping the items, our staff will carry out an extensive inspection of the products you ordered. Today, most orders will be delivered within 48 hours. The time to deliver varies from 3-7 days.
Returns
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Our policy lasts for thirty days. If you haven't received the product within 30 days, we are unable to offer a refund or an exchange.
You can only return a product if it is unused and still in the same state as when you first received it. It should also be returned in the original packaging.
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