DESCRIPTION
Feature:
Board size: 7.7 x 6.1cm;
Operating voltage: DC 4.5V-5.5V;
DC power supply, inside positive outside negative, do not connect reverse;
FM range: 87MHZ-108MHZ;
FM step: Click once step 0.1MHZ, long press FM button can add and subtract continuously;
Function: Digital display frequency function, power off memory function, power saving function;
With power-off memory function;
Introduce 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 beautiful.
Speaker: 2W 8ohm;
Package includes:
1 x PCB board;
1 x 262 small antenna;
1 x 0.56 inch 3-digit common cathode digital tube;
3 x 100UF 50V electrolytic capacitor;
2 x 10UF 25V electrolytic Capacitors;
3 x 22P ceramic capacitors;
4 x 104 monolithic capacitors;
1 x 8*8 self-locking switch;
1 x 7MM high self-locking switch cap;
1 x DC005 socket;
1 x 4.7 ohm resistor;
11 x 10K resistor;
1 x 220K resistor;
5 x 9012 triode;
1 x 13.56M crystal;
1 x TEA5767 radio module;
2 x 6*6*20 button;
1 x 2*5*7 LED;
1 x 50K dial potentiometer;
1 x 8P IC socket;
1 x 40P IC socket;
2 x LM386 chip;
1 x STC89C52 (program burned);
1 x Acrylic plate (set);
25 x M3*8 screws;
25 x M3 nuts;
5 x 10MM Double Copper Post
