ขาย Diy Assemble Portable Am Fm Radio Kit 76-108mhz 525-1605khz Suitable For Elec 1P2021 huwF ราคาที่ดีที่สุด

มองไปข้างหน้าของคุณกำลังติดตาม Description: This kit's FM reception range is76-108MHZ, not only capable of receiving FM radio , but also capable of receiving campus radio and part of TV station audio signal. AM reception range is 525-1605KHZ. There are three integrated blocks: patch integrated block 9088 for FM, in-line integrated block 7642 for AM, 2822 for amplifier Instruction: Align the IC in the correct position and solder opposing pins. Then solder each successive pin taking care not to short out adjacent pins. Mount the hardware – the headphone jack, the variable capacitor, the volume switch and the band switch. Mount the two copper air-coiled inductors and LED Bettery case：Keep the terminals loose on your bench and solder a red wire to the positive and black wire to the negative solder a pair of yellow wires to the positive and negative of the speaker. Now, the screws need to be sorted and the dials installed. three long tapping screws (pointed end) two short tapping screws (pointed end) two identical machine screws (flat end) one slightly different machine screw make the final connections and assemble the unit. First, slide the battery terminals into place – positive is the top terminal on the front case, negative is the lower terminal. Tack-solder the negative wire to GB-, and positive wire to GB+. Next, solder the speaker wires with both yellow wires going to one SP terminal respectively. The AM rod antenna connections can be made by looping out the enamelled wire (over the top of the PCB is best) and tack soldering the ends to AM terminals. The final connection is the FM antenna connection. color: White material: plastic Package Contents: 1 x AM FM Radio KitOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.