May 19, at 8: The schematic as listed is shown above. If you are into building radios, then this. Then, do the same with the other row of pins after you’ve allowed the chip to cool off a little. Samples of the audio as recorded by my Zoom H1 recorder are here. January 17, at 5: May 20, at 2: Part of the cause seems to be the jack itself being slightly larger than the hole in the rear plastic cover - reaming out the hole slightly using a large Philips head screwdriver seems to do the trick. In the case of this kit, this specifically includes: Note the temptation to use enlish reflow techniques. HYDROTROPIC SOLUBILIZATION PDF CD9088CB Datasheet PDF – FORWARD De-tuning related to the IF and too weak input signals is suppressed by the mute circuit. I also used a digital calipur to measure datasgeet position of the Band Trimmer screws, then drilled two small holea in the back cover to save removing the cover each time. One time I even reduced the turns on one of the coils. Next, try to close the case hooking over the headphone out jack first, and then clipping in the tuning dial side. Magnifying glass and light to read small component values and markings also optional. This entry was posted in AudioElectronics englizh, Radio and tagged cheap datashee, diyebayelectronicsmade-in-chinaprojectradiorf. Take care with the ceramic disc capacitors not to lose them as some are extremely small. Datasheets search archive of electronic components datasheetsĬlean up all the excess flux when you’re done. Instead, you will have to solder the yellow wire to the arm next to the screw hole, making sure the solder is low profile not to interfere with fitting the antenna through the slot. January 17, at 3: As an experienced kit builder, I wasted no time in getting started. I wonder if adding some holes in the back of the case would help. To adjust the FM alignment, you need to use a flat blade screwdriver and adjust the right brass screw on the rear of the variable capacitor datasheeet. I must have used the wrong screw for the antenna as it became loose and I ended up replacing it with a self tap of slightly larger size. Use a fine-tipped iron and keep the tip clean. The IC type is YD I tracked down a datasheet and put it on my site. The only English you will find is in the listing description, which isn’t for FM reception, with the only datasheet I could find being in Chinese. CDCB Datasheet – Monolithic electric tuning FM radio IC, CDCB datasheet, CDCB pdf, CDCB pinout, equivalent, data.
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