FM Radio Kit with RDA5807 Chip 76-108 MHz Soldering Set Stereo Receiver with Buttons and Holder for 2 AA Batteries for Electronics Education
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The YFM-2 FM radio kit is a simple soldering set from which you can assemble a functional stereo receiver for listening to the radio through headphones. The heart of the circuit is the integrated circuit RDA5807PF, which takes care of reception, tuning, and signal processing. The receiver covers the entire band 76-108 MHz, allowing it to capture stations in the standard European range as well as in the extended band. The entire circuit contains just under twenty components, making it manageable even for complete beginners. The kit is suitable for school electronics education, clubs, home crafting, and as a gift for DIY enthusiasts.
A notable feature of the kit is the combination of two types of components. The integrated circuit is in a SOP-16 package for surface mounting, while the other parts are traditional leaded components, allowing you to practice soldering SMD and THT components on a single board. The receiver has built-in automatic gain control (AGC) and supports memory for tuned stations. Control is provided by five buttons for power, volume up and down, and tuning stations up and down. The sound is output through a 3.5 mm audio connector, into which you can plug standard headphones.
- Model – YFM-2
- Chip – RDA5807PF in SOP-16 package
- Frequency Range – 76-108 MHz
- Power Supply – 3 V from two AA batteries
- Operating Current – 19 mA
- Output Impedance – 32 Ω
- Output – 3.5 mm audio connector for headphones
- Control – 5 buttons (power, volume +/−, tuning +/−)
- Function – automatic gain control (AGC) and station memory
- PCB Size – 56 x 30 x 1.6 mm
- Dimensions after Assembly – 57 x 32 x 20 mm
- Operating Temperature – -40 to 85 °C
- Package Contents – PCB, integrated circuit RDA5807PF, 30 kΩ resistor, 0.1 µH inductor, 2 x 1 µH inductors, ceramic capacitors 24 pF, 10 nF and 22 nF, 2 x 100 µF 16 V electrolytic capacitors, 32.768 kHz crystal, 5 buttons 6 x 6 x 5 mm, 3.5 mm audio connector, holder for 2 AA batteries, 2 zip ties 3 x 60 mm (batteries and headphones not included)
Before assembly, prepare a soldering iron, solder, and ideally a pair of tweezers for placing the integrated circuit. First, solder the chip according to the marking of the first pin, then the resistor, inductors, crystal, capacitors, buttons, and finally the audio connector and battery holder. Do not leave the soldering iron tip on the component for more than about one second, and ensure correct polarity for the electrolytic capacitors. Power the receiver with only two AA batteries; a 18650 cell would damage the circuit.
The FM receiver soldering kit is a practical way to learn how to read a PCB, place components, and solder small parts. Upon completion, you will have a small radio measuring 57 x 32 x 20 mm, which actually plays and is controlled by five buttons. The kit is useful in education, at electronics competitions, for personal projects, and as a collectible item. Due to its simple circuit and clear board markings, it is suitable for beginners as well as more experienced DIY enthusiasts. You can further modify the finished receiver, for example, by placing it in your own enclosure.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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28070 Alcala de Henares, Madrid
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About the seller
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Seller:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
Manufacturer:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
EU responsible person:
EU Consulten Srls
Address: Via Varesina 55, 20156 Milano, Italy
E-mail: Eu-consultenSrls@hotmail.com
Telephone: +39 328 583 2654
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