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Scot, I doubt they have changed. Perhaps you are looking at the bottom side of your board, and the top side of the various product offerings? Be sure to buy a Nano that does not already have the pins

Fully agree that the IRF510 is O.K for amateur radio use. It can do the job and is very cheap. Only one word of warning.... buy them from a reputable source that has branded devices. There are a lot

Looking to get some more Nano's, however when shopping on Amazon, E-Bay and others, They look different. Don't see the 5 volt regulator for 1 among offer things. Have the Nano's changed? and if so,

Evan Just a follow up. I did it and and put it on the SD card ubitx_28_E.tft . This is just atrial run and it seems to have work OK! I will play with it some more. Thanks. 73 Jon

Evan I thank you! I will followup if OK. I have formatted the SD card fat32. Jon

Jon, It is the UBITX_Netion_GUI_V3.ZIP download and unzip the archive.? There is both a 2.8" Basic and 2.8" Enhanced tft and HMI files.? The tft are the already compiled files to transfer with a

Thanks Rafael and Curt, I followed the procedure in Farhan's video ( https://youtu.be/t6LGXhS4_O8 ) on your recommendation, but the result is the same. On certain frequencies I can hear high pitched

Bob, Thank you for reply, I verified the speaker cable and is fine, must be something else. Alex KK4FAA

It's so much different from using audio amplifier and TV sweep vacuum tubes in the final stages of low power transmitters. They were not designed for that job. But they worked well (and still do). I

Simplest is to use computer speakers. I user the ones with an audio amp included. However, make sure to only use a plug that does not short out the ring on the headphone jack since it requires a

Mad, I think we're mostly on the same page here. The uBitx is not a mil-spec radio, or anything close. It's a rock bottom implementation of an all-band HF SSB rig, inviting hacks to improve something,

Jerry, 40ma. I am currently using a tda2003 in my V6. Barry K3bo [email protected]> wrote:

Evan I thank you, but which one of the 5 files do I download? HEX1.1.zip MM1.1.zip UBITX_Nextion_GUI_V3.zip UBITX_Nextion_Temp_V1.zip UBITX_TJC_GUI_V3.zip Is it the HEX1.1.zip, just a guess! I have

Steady white might be wrong firmware. But for a flashing white screen, I'd first check current draw. If you have a variable supply, I'd also do a slow Voltage ramp, monitor current. Rgds, Gary

Things to try: Verify adequate voltage/current from your power supply. Make sure the power supply cable is firmly seated to the jack on the uBITX. Try with the USB cable disconnected. Reset the

This really is the same argument if you think about it. The majors (Icom, Yaesu, Kenwood, etc.) don’t use a nano or nano-clone in their radios (actually some use sister chips)… not because of the

Jon, The prior link will get you to a zip file with the tft file that you need (at least one variant).? To transfer the tft file to the Nextion display you format a 32gb or smaller microSD card and

Evan Bye the way if I did not tell I ordered a 2.8" Nextion .

Evan I downloaded Xloader that's OK. But I am still confused with the Nextion firmware I still cannot find it,or I do not know what I am looking for? Thanks Jon

I referenced that circuitstoday.com discussion because the TDA2003 datasheet only had reference designs using two TDA2003's in a bridge circuit. But it's a pretty hack job, note that they recommend an