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QSL. Tnx. Franco

Thank you, John and Jerry. I would like to formally establish that my Raduino is faulty, and simply buying a replacement seems like cheating. I will try John's idea and see what I find. If I can

The U1 only. There are equivalents for 2822 also. Don't used chips with marking WX on, they are failing! Raj

Should I replace U1 the TDA2822 or Q70 the 2N3904?

Thank you gentlemen I now have a much better idea of how to try and fix this problem. I also have another question: What should I do with the bunch of remaining wires not used coming from

Blown audio amp chip. Desolder and put a socket. Raj

I have a similar problem. My speaker connector is standard RCA. While testing for about half an hour it suddenly muted, nothing from the speaker.

Since you have connected L and R to the audio out then you CANNOT use a mono jack. A mono jack shorts out R and therefore L also. Remove the inner R wire (the short jumper in photo) and you should

Thanks for the patient explanation for Menashe. I was presuming that he knew about calibration. Raj

So, my build is not standard. It powers on, but I get no sound even when I turn up the volume all the way. I confirmed the speaker is 8 ohm and it is mono (see connector in photo) The way my build is

We need to study the minimum voltage needed for relay operation. If we can change the relays to5V type, and use a LDO regulator on raduino, we can work at 6V battery for the rig except that we may

Near the bottom of this webpage: ? ??http://www.hfsignals.com/index.php/2017/11/23/wiring-up-the-bitx40/ under "Calibrating the Raduino" it says ? ?? * Attach a switch between the RED wire of

Which wire are we talking about? Menashe

Geoff, John's been giving some great advice. Replacing the Nano Arduino on your Raduino will require clipping the 15 pins on each side of that little board hiding under the LCD, then soldering in a

Hello Geoff, No problems. Then I suggest the following: I would solder a pair of wires directly to the Raduino circuit board where the male molex connector is soldered on the board? (on the Arduino

Yes

I haven't gotten mine in the mail yet, but I'm getting my little handheld mic ready to build, and my Easy-Digi interface is about to arrive. What I'd like to do is have a 3.5mm TRS jack for the mic

Dave, I upgraded my firmware to Ian’s build which fixed a few instabilities in the original firmware. I also installed a thump fix which works well because I use headphones a lot and now it’s

Hi John, Thank you for trying to help. I am not familiar with programming, the last time I did any was on a ZX81 30 years ago.. Regards Geoff

What photos section?