Description
Feature: Board size: 7.7 x 6.1cmOperating voltage: DC 4.5V-5.5VDC power supply, inside positive outside negative, do not connect reverseFM range: 87MHZ-108MHZFM step: Click once step 0.1MHZ, long press FM button can add and subtract continuouslyFunction: Digital display frequency function, power off memory function, power saving functionWith power-off memory functionIntroduce the power-saving function: After each power-on or press the FM key, the digital tube displays the frequency for 5 seconds. After 5 seconds, the digital tube display will be automatically turned off. There are two reasons for this design. 1 is power saving, and 2 is the digital tube. Disturbing sound when displayed, turning off the digital tube monitor, the sound is more beautifulSpeaker: 2W 8ohmPackage includes: 1 x PCB board1 x 262 small antenna1 x 0.56 inch 3-digit common cathode digital tube3 x 100UF 50V electrolytic capacitor2 x 10UF 25V electrolytic Capacitors3 x 22P ceramic capacitors4 x 104 monolithic capacitors1 x 8*8 self-locking switch1 x 7MM high self-locking switch cap1 x DC005 socket1 x 4.7 ohm resistor11 x 10K resistor1 x 220K resistor5 x 9012 triode1 x 13.56M crystal1 x TEA5767 radio module2 x 6*6*20 button1 x 2*5*7 LED1 x 50K dial potentiometer1 x 8P IC socket1 x 40P IC socket2 x LM386 chip1 x STC89C52 (program burned)1 x Acrylic plate (set)25 x M3*8 screws25 x M3 nuts5 x 10MM Double Copper Post
