开云体育

Just wondering...has anyone tried using a 3D printer to print the resist pattern on PCB material? I think it could be done but I don't know if the print filament material would resist the etchant well

Bob: I've read back through the posts and did not find anyone who said the FDA prevented other countries from using the ventilator developed here. I am the owner of the Ventilator group site you

I would give my left...whatever...to be able to design a circuit. It is still amazing to me to see someone sit down and, looking through some spec sheets, knows how to string things together and make

I might get booted out of here for saying this, but, the IC7300 is an amazing deal for the price point. For 1000 bucks, it gives a huge radio. 100 watts, DDC receiver, all the SDR bells and whistles.

I agree that that this isn't the place for pushing a whining political agenda, but since some people have, some misstatements need addressed. Originally the ventilator that some of us worked to

Building a transceiver from scratch is indeed great fun. Soldering the components on, winding the toroids, aligning the IF, setting up the filters. Then testing it all for smoke, and seeing if it

Most of the features are just software codes. Your main transceiver can be really, really simple. Yet you could have a front panel crammed with buttons and knobs that connect the micro inside the

They look great. If anything, the local hams will be convinced that you really made if yourself ! I collect cellphones. In my collection are prototypes rhat never made to production. How can I prove

Reg -- we build stuff 'cause it is enormous fun. Buying a complete radio is very cool if you want to move on quickly to the software (Fldigi, WSJT-X, logging, award tracking, etc etc) for example.?

Hello, As promised, I made today my 6 adapters to correct the error on my PCB. You will tell me, why 6, the ubitx has only 5. As it is a personal fabrication, I added a relay that allows me to have

Roger, China and India have been inches away from nuclear war for decades. I would hope that China would take the high roar with COVID relief for India. I also wish we had responded sooner, but this

To avoid the tiny pores, you could the Cold toner transfer process. The most interesting variant of that uses Mosquito Repellent lotion - https://www.youtube.com/watch?v=1oRYKKIqBOE

Best wishes to you and all India for a speedy recovery

Yes, best wishes and prayers for India and the whole world. I wonder if the author of the article ever thought that perhaps China should support other nations in this. Why is it when any other Country

I look at the complexity of most modern rigs and wonder.... how many people use more than a few of the multiple facilities ? Could the average person remember how most of the settings work without

Hello, Hello, thank you for seeing that my Kicad design problem interested you. I’ll get you pictures of my adapters as soon as they’re done. For the manufacture of PCB, I use the transfer method

Thanks for this link http://www.w0eb.com. I have started to study it and finds it can provide a wonderful uBitx with the choice of IARU regions, a faster answer to commands, keyboard and mouse control

Gerry, Yes, it's a great chip. I have one tuned to my 700Hz sidetone (lights an LED), so I know when I'm right on frequency with another station. Trystan G0KAY

I think it's less the Thalidomide situation than politics.? $200 is a lot cheaper than any other price I've heard/seen - a LOT cheaper. Enough so that when I heard about the paperwork... I was

Hello Bob, Your order is ready for shipping and will be done so in the next couple of days. We will inform you via a private mail the dispatch details. It usually takes between 5 to 10 days once