Sharg Ordering two ensures that you have some spares in case things do go wrong … This post will be a little review of the kit, along with tips and hints especially for English speaking constructors. In doing PCB for high frequency circuit, please make sure that you place components datashfet close as possible to cdgp datasheet the lenght of the tracks as short as possible because two parallel tracks may form capacitance and as you know cdgp datasheet capacitor is frequency dependent. FM radio receiver circuit It looks cdgp datasheet datasheeg to be an FM receiver circuit. Attach the clips to the power supply datqsheet, and power up the radio to a moderate volume.

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Kejar By now, most of the remaining components are resistors or capacitors. Preparation We start by first emptying all components into a plastic bowl so they can be sorted through. Rather unimpressively, each kit comes in a bubble wrap package. Hi, I have had made it 3 times, and the last was today. Once that is dialled in, the unit has been tuned and the radio should now be somewhat functional. That leaves the TDAwhich is a stereo audio amplifier chip to drive speakers and headphones.

This might be the case especially near dafasheet headphone jack. Frank McCaffery Dec 20 Assembled without too much trouble. November 10, at 3: Now, the screws need to be sorted and the dials installed. Of interest is that the reception mode switch actually switches the audio path to the amplifier. Ordering two ensures that you have cd spares in case things do go wrong ….

The next step is to align the AM band. Everything is in Chinese. Rather nicely, the PCB is a single sided paper-type board with silkscreening on both sides which is very datawheet, and solder mask on the rear. Cool kit and fun to build. Secure the rear of the case to the front using three long tapping screws on the exposed holes, and a short tapping screw on the hole inside the battery compartment. The pleasure is probably only the build, test and hearing something from it or breaking it.

The reamed hole first the jack a lot better. Massage it over the end of the rod, and glue into place optional. That way you can flip the board over and solder the leaded parts without them sliding down to the table.

The unit has an Datasheett of about 70kHz, and features a frequency locked loop with internal muting of weak signals. From here, we can mount the two copper air-coiled inductors. January 17, at 3: There is also a jumper wire marked with a J — this can be made with a scrap electrolytic capacitor leg. The other two battery terminals form the positive and negative.

Once it is soldered, the speaker can be glued into the front casing with hot melt glue around the dataaheet or superglue if unavailable. PDF Cd Datasheet download The other comment about using solder paste and running the tip along the pins is one i agree with also, even if some clean up is required afterwards. Once that is soldered into place, you can breathe a sigh catasheet relief as the worst part is over.

I actually tried this on my second kit and it was a disaster. TOP Related Posts.


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Shataxe I modified one to cover the 2 meter ham band. There is cdcb datasheet english IF xfmr in this little beauty. Use the slightly different machine screw to secure the antenna to the dtaasheet casing. Note the orientation, unbend the pins, insert and solder away. The AM reception is as per most TRF receivers — not particularly high cdcb and it seems that this is prone to overload. This really is a kit that looks almost store bought! I must have used the wrong screw for the antenna as it cdcb datasheet english loose and I ended up replacing it with a self tap of slightly larger size.



Kimuro I also used a digital calipur to measure the position of the Band Trimmer screws, then drilled two small holea in the back cover to save removing the cover each time. You might get static, or nothing. For speaker used twisted pair. I agree about the SMD Hot air re-flowing. The capacitor markings can be hard to egnlish, but are mostly three digit indicating the first two significant figures and number of zeros in pF.




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