Embark on a DIY electronics journey with this 2P2 Single Light Electronic Tube Radio Board Kit. This kit provides the components to build your own FM radio, offering a hands-on learning experience for electronics enthusiasts. Kit Features: - Potentiometer with switch and regenerative adjustment. - DC 14500 lithium battery power supply (3.7V, 9V screen voltage, <0.5mA screen current). - 2.4V filament power supply (7 positive pins, 1 negative pin, 5 empty pins, 30mA filament current). - Lower lamp illuminated by red LED (2.4V power supply, 150 ohm current-limiting resistor, 16mA LED current). - Transformer impedance conversion for low-resistance headphones (8-32 ohm) or direct use for high-resistance headphones (2000-4000 ohm). Important Notes: - Coils on the magnetic rod need to be wound by yourself using the included enameled wire. - Suitable for 2P3 casing (casing not included). - Batteries and speakers are not included. - A single-tube machine without an antenna or amplifier will have very weak sound. - For best results, connect to an amplifier via line-in (e.g., phone, Bluetooth speaker, computer speaker). - This kit is best suited for DIY enthusiasts as it may only receive a few powerful stations and the listening effect may not be optimal for casual use. Style: Portable Type: FM Color: Black Material: Plastic