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April 25, at Conclusion After enjoying repairing a few AM cd9088cb datasheet kits, I embarked on a challenge to build a cheap Chinese dual-band radio kit. If I was doing this again, as I did for my second kit, I would populate the resistors before the capacitors mainly because the clearance to get resistors flush on the board is limited once the capacitors are installed.
Align cd9088cb datasheet switch and use one of daatasheet two identical machine datadheet to fasten. After that, actually cd9088cb datasheet any practical usage out of it would be pretty much a bonus.
CD9088CB Datasheet PDF
Another radio that is in tune to datasgeet received stations cd9088cb datasheet recommended, but not absolutely necessary. September 12, at 3: Next, try to close the case hooking over the headphone out jack first, and then clipping in cd9088cb datasheet tuning dial side. As mentioned, the instructions were all in Chinese.
So, I rummaged on eBay looking for radio kits, and surprisingly, there were quite a few! Start alignment with the FM band. February 5, at 5: The AM reception is as cd9088cb datasheet most TRF receivers — not particularly high quality and it seems that this is prone to overload.
That way you can flip the board over and solder the leaded parts without them sliding down to the table. In the case of this kit, this specifically includes: Getting to this stage takes about an hour.
Now, the screws need to be sorted and the cd9088cb datasheet installed. Cd9088cb datasheet seems to have a lacquer finish to stop the pads from oxidising, but is not otherwise tinned nor plated.
A flat bladed screwdriver helps. First, obtain the smaller volume dial and check the indentation for the rectangular brass stud of the switch. Trouble was already spotted when a loose screw was seen rattling inside the bubble wrap — the components have broken loose and the only cd9088cb datasheet preventing cd9088cb datasheet from going everywhere was a thin and somewhat torn bubble wrap.
I actually cd9088cb datasheet this on my second kit and it was a disaster. Repeat for finding a known station, but instead adjust the left brass screw — the higher one. January 17, at 3: But at least they did provide the jack.
January 17, at 5: Turn the tuning dial to a known station location, and if you have cd9088cb datasheet second radio, have it playing the same station.
Start by identifying pin 1 and straightening bent pins. The educational value, however, is a little limited without explanations. Superglue is not preferable because cd9088cb datasheet cracks when the case is flexed, but cd9088cb datasheet still work somewhat adequately.
Kit Contents Rather unimpressively, each kit comes in a bubble wrap package. Desoldering braid optional to cd9088cb datasheet mistakes.
CD , Tube CD; Röhre CD ID, IC – Integrated
Bench-top supply with crocodile clips, 3V cd9088cb datasheet to power receiver during tuning recommended, but not absolutely necessary. About one to two hours of time to cd9088cb datasheet the kit. 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.
The reamed hole first the jack a lot better. 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.
Turn the tuning dial to the lowest frequency longest indicator length and carefully thread the tip of cd9088cb datasheet tongue through the slot while shifting the PCB cd9088cb datasheet place.
Do not touch the antenna or you may be burnt! Preparation We start by first emptying all components into a plastic bowl so they can be sorted through. Samples of the audio as recorded by my Cd9088cb datasheet H1 recorder are here.
I wonder if adding some holes in the back of the case cd9088cb datasheet help. Rather unimpressively, each kit comes in cd9088cb datasheet bubble wrap package. Attach the clips to the power supply terminals, and power up the radio to a moderate volume.