2x FA702 FM WIRELESS MIC 1 STATE,ELECTRONIC CIRCUIT BOARD,ASSEMBLED KIT, US $13.00 – Picture 0

2x FA702 FM WIRELESS MIC 1 STATE,ELECTRONIC CIRCUIT BOARD,ASSEMBLED KIT, US $13.00 – Picture 1

2x FA702 FM WIRELESS MIC 1 STATE,ELECTRONIC CIRCUIT BOARD,ASSEMBLED KIT, US $13.00 – Picture 2

2x Fa702 Fm Wireless Mic 1 State,electronic Circuit Board,assembled Kit

US $13.00

Bangkapi, BA, Thailand
Jun 9th

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2x FA702 FM WIRELESS MIC 1 STATE,ELECTRONIC CIRCUIT BOARD, ASSEMBLED KIT (2 Pcs.) Detail This FK703 wireless microphone has two tuned stage for extra stability and gain. Construction is simplified by the adoption of etched resonant coils on the PCB. Its small outline lends itself to use as a lapel microphone or security "bug". The FK703 may be used with any FM radio receiver in public address applications. It is the FM wireless microphone circuit using a resonant coil pattern etched onto the PCB to simplify the fabrication. This set FM wireless MIC is a wireless MIC circuit which is printed in coil circuit resonance circuit, so it makes the composition easy. Technical data - Power supply : 9VDC. - Electric current consumption : 10mA. (max.) - Signal transmitting frequency: 88 MHz - PCB dimensions : 1.7” X 1.1” or 4.40 x 2.80 cm. - Recommended housing : FB08 Circuit performances The condenser microphone receives sound signals coming into it. In the microphone there is an amplifier diaphragm that transmits signals through C2 and to Leg B of TR1. TR1 then generates radio wave frequency and mix the sound signals with the generated radio frequency. Generation of radio frequency depends on the trimmer, and the coil etched from the PCB at Leg C of TR1 shall be connected to the antenna in order to broadcast the sound. Circuit Assembly The assembly of components is shown in Fig. 2. For good looking and easy assembly, the shorter components should be first installed - starting with low resistant components and then the higher. An important thing is that diodes, electrolyte capacitors, and transistors shall be carefully assembled before mounting them onto their right anode/cathode of the IC board otherwise it might cause damage to the components or the circuit. Configuration of the anode and the cathode is shown in Fig 3. Use the soldering iron/gun not exceeding 40 watts and the solder of tin-lead 60:40 with flux within. Recheck the correctness of installation after soldering. In case of wrong position, just use lead absorber or lead extractor wire to avoid probable damage to the IC. Testing Supply 9VDC to the kit by connecting the anode to +9V and the cathode to G, ANT to soldered coil (scrape the flux before soldering to assure firm connection). Tune the FM radio at 88.0MHz and gradually calibrate the trimmer with a plastic- tipped screwdriver until the feedback begins. Test the microphone whether it sounds, if it doesn't then tune at 100.0MHz, approximately. And if the second trial fails, tune the radio to the uppermost limit of the band at 108.0 MHz and try it again. Free Shipping Handling WORLDWIDE. The package will be shipped directly from Thailand via Economy/Standard Small package Airmail, and it will take about 11-23 Business Days (or about 2-5 Weeks) **Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. **Please check with your country’s customs office to determine what these additional costs will be prior to bidding / buying Return Policy 100% Satisfaction Guarantee: If you are not satisfied with the product you purchased for any reason, please contact us for a return instruction within 30 days Shipping Handling costs are not refundable. Return shipping cost will be paid by buyer. We accept ONLY PayPal for payment. Contact us Please contact us by eBay message only.

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Future Kit
MPN	FA702
Model	FA702
Country/Region of Manufacture	Thailand
UPC	Does not apply