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Liquid nitrogen is cheap and accessible. Very fun to play with. And you don't have to feel guilty as it dissipates back into the air from which it came. Be sure to read up on first aid for frostbite.

Seconded! and 90% of all electrical/electronic faults are at root actually mechanical! 73 all ZL2DEX

Sweet, thanks.

Wow, thanks for all the hard work figuring this issue out. I'll pull the Raduino off the main board and power it up with a micro USB connector later tonight and check to see if it reads 5 volts across

Doable.? And I'm not laughing.? ;) That might eclipse the hack of 30++ years ago.? 2n2219 in a block of aluminum with feedthoughs and the cavity filled with transformer oil.? Got the thing to put

Hi Gary, Thanks for sharig yoru experience. I was able connect to the Raduino and load software. But it still did not fix the problem I even ended up resolding the board thinking that there might be a

This might help :-)

Thanks Tim, for the reply. It is sealed and the size of a dime. If a replacement and extra extras were not coming in the mail and arriving Monday I would try to open her up but I'll wait and assemble

Anyone a part number or description what to look for to get the same as shipped with the uBitx?

Hi Skip, Thanks for the reply. I described what it should be doing. The point is- It is not behaving as I described and that is why I removed the encoder and ordered a replacement plus 4 spares. Mike

I have almost the exact same issue with my uBitx!!!! I spend many hours trying to diagnose this problem at the end you can narrow it down to this: * Disconnect the raduino board from the main board *

wouldn't vodka be better than water for cooling?

THe problem with grounded gate using Mosfets is twofold. At 2A with a gm or 2-4S th input impedance would be under 2 ohms.? The second issue is the drain to source reverse diode plus the high source

I have a cheap USB fan blowing at my stock heat sinks and they stay nice and cool when working digital.? But why settle for good enough?? Who wants to be the first to have a water cooled BITX?

Follow the three steps of mechanical diagnostics. If it's stuck, hit it with a hammer. If it breaks, it needed replacement anyway. If you're going to throw it away, taking it apart won't do any more

I put about a 5 ohm resistor in the wire coming from the ubitx going to the speaker jack just to try and eliminate that type of problem.

I managed to let the smoke out of my TDA2822 this morning.? I built cables yesterday to connect the uBitx to my YCCC SO2R box so I could use my common headset and paddle / Winkey, and all was well

I do get tones in the passband on 20 meters. But its never been enough to wreck havoc on psk or ft8. Just a minor annoyance when I listen to the digi transmissions. [email protected]> wrote:

Mike, Before you throw the encoder away is it sealed or does it have an opening somewhere? You could try flushing it with WD40 to see if one of the mechanical switches is hanging and just needs a

Lucky you. Those 12 and 16 mhz resonators on the Nano are not very accurate, could be spot on or could be several thousand ppm off.? If close to spot on, you can get audio beat notes with our 12mhz