Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com
Podcasting since August 2005! Listen to Latest SolderSmoke
Friday, August 21, 2026
The Solar Eclipse in Spain, Balloons, and Veritasium
Wednesday, December 31, 2025
Is the Veritasium Guy Retiring? Google says SolderSmoke is "Low Value Content."
I have been a fan for many years. His comments on the vile influence of the algorithm and AI are right on target.
Google recently informed me that the SolderSmoke blog has "Low Value Content." Well, consider the source!
I think Veritasium has made a good choice.
Three cheers for Veritasium!
Friday, July 4, 2025
AI Apocalypse: How Google is Changing the Internet-- Implications for SolderSmoke
Here's what happened in a nutshell: During the spring of this year Google rolled out an automatic AI search feature. So now, when you have a question, Google's AI looks at websites across the web and writes up a nice, specific answer to your question. Good for you, but disastrous for those who built blogs and websites on the assumption that Google searches would be sending a lot of people to our sites. Why go to the sites if the nice AI has already given you the answer? Many of us have seen precipitous drops in the numbers of visitors. I have noticed an especially large drop in the number of comments on my blog posts. And I have noticed that many of the other blogs listed on my blog site are no longer posting regularly.
This is not imaginary.
Here is a BBC article on what has happened: https://www.bbc.com/future/article/20250611-ai-mode-is-google-about-to-change-the-internet-forever
Here is TWiT TV talking about it: https://www.youtube.com/watch?v=EDdLw1ubLaY&t=86s
Andreas Speiss (White gloves, Swiss accent, motorcycle hat) talks about the YouTube trends that are causing him to stop regular video production: https://www.youtube.com/watch?v=GTerwIniB24
Leo Sampson talks about the pressure to get high hit numbers on YouTube (scroll forward to the 3 minute 20 second mark): https://www.youtube.com/watch?v=E4tSOQO3kxY
Fraser Cain of Universe Today talks about the Google ""AI apocalypse" (scroll ahead to the 18 minute mark): https://podcasts.apple.com/us/
Tuesday, December 17, 2024
Popcorn Electronics is BACK! Yea!
Friday, May 26, 2023
Coffee with Farhan VU2ESE (video)
Sunday, July 3, 2022
Homebrew Variable Capacitors -- VU2NIL's Antenna Tuner (and other projects from Basanta)
Saturday, June 25, 2022
Australian Homebrew: Owen Duffy ex VK1OD now VK2OMD. Are Hams Makers?
This week I stumbled upon this amazing blog from Australia. I had to check with Australian friends to find out more about the author. Owen Duffy has for many years been a rigorous homebrewer who has documented his findings on his blog: https://owenduffy.net/blog/
For example, Owen asks the question, "Are hams makers?" https://owenduffy.net/blog/?p=122
There is a lot of great material on this blog. It goes back to 2013. Peter Parker notes that an earlier version of the blog (before Owen was forced to change his callsign from VK1OD to VK2OMD) goes back even further and is accessible via the Way-Back Machine: https://web.archive.org/web/*/
Check it out. Lots of really useful and interesting material there. Thanks Owen. And thanks to the Australian friends who provided background info.
Tuesday, June 9, 2020
NanoVNA, Millen Dip Meter, Kilo-Megacycles, and Measuring the Speed of Light (Video)
Yesterday my NanoVNA arrived. This morning I was looking for info on how to use it and I found this really wonderful video from Joe Smith.
Wow. Joe gives a really useful intro to the capabilities of this amazing little device. He even reaches back in time and compares NanoVNA results with those obtained by a Millen Grid Dip Meter. He pulls out of his junk box an attenuator that is so old that it is marked in "Kilo-Megacycles." (Shouldn't we revive terms like that?)
Joe also gives us a taste of what it is like to live and work in the GHz range. He warns us never to touch the SMA connectors on our NanoVNAs (too late Joe). And -- get this -- he uses a torque wrench to connect the little SMA coax connectors to the NanoVNA. I'm not kidding. A torque wrench. Joe connects surface mount capacitors and inductors that have their values specified not only in picofarads and microhenries, but also at the specific frequency at which they were measured.
My understanding of the Smith Chart was greatly improved by watching Joe's video.
Icing on the cake: Joe wraps up the video by using the NanoVNA to MEASURE THE SPEED OF LIGHT. Great stuff. Thanks Joe.
Here is Joe Smith's YouTube channel:
https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
Now I have to get the software to use the NanoVNA with my computer.
Saturday, May 30, 2020
An Amazing Catalog of Circuits from HA5KHC
HA5KHC is a club station in Budapest, Hungary. The photo above shows a portion of their worshop. The link below is for their really amazing collection of links to ham radio circuits.
http://konstruktor.ha5khc.hu/linkgyujtemeny/linkgyujtemeny.htm
Wednesday, May 27, 2020
Emilio's Mirror of JF1OZL's Site

Emilio in Mexico has put up a mirror site. Thanks Emilio. We need to protect and preserve JF1OZL's work.
https://www.emilio.com.mx/jf10zl/
Here is a SolderSmoke blog post on Kazuhiro from 2011:
https://soldersmoke.blogspot.com/2011/12/homebrew-hero-kazuhiro-sunamura-jf1ozl.html
Tuesday, May 19, 2020
SolderSmoke on Ham Radio Workbench Podcast
Wednesday, March 25, 2020
For Inspiration and Education: Dean's Radio Blog (with video)
Be sure to check out the blog of Dean KK4DAS. He is a new homebrewer who is having great success with one of Pete Juliano's ingenious SSB designs. Dean has a video of his receiver working -- AL FRESCO -- as construction on the full transceiver proceeds.
This is amazing. Just a short time ago Dean was taking his first steps as a homebrewer with his version of the Michigan Mighty Mite. He has followed the advice of the Tribal Wizards and has proceeded slowly, step by step, stage by stage, gaining the experience that has allowed him to actually build a superhet receiver and be on the verge of completing a full SSB transceiver.
Lots of inspiration to be found on Dean's blog. Check it out:
https://kk4das.blogspot.com/2020/03/dean-kk4dass-furlough-40-ssb-rig.html
Sunday, February 23, 2020
TRGHS: Hearing K5HCT Through a Single 12AU7 Tube with 12 Volts on the Plate (Video)
The lower portion of the column on the right-hand side of this blog is where I put links to interesting blogs, YouTube channels, and web sites. Yesterday one of the links there led me to the above video. It presents a regen receiver using one 12AU7 tube and a 12 volt power supply. Wow! I have many of those tubes. And at 12 volts I am unlikely to electrocute myself. Count me in.
In the final minute or so of the video, the builder tunes around the 40 meter phone band. Suddenly I heard a familiar voice. It wasn't recorded long enough for the callsign to be heard, but I was pretty sure it was our old friend August, K5HCT (Here Comes Texas) from Odessa.
Odessa, Texas is a good skip distance from both California and Virginia, so Pete and I have both talked to August many times. When I was testing out new homebrew contraptions, August was often there to help me out.
I was pretty sure it was August in the video. I checked with Pete -- he too recognized the voice. Then I got an e-mail response from August -- yea, it was him.
On the air, I often recognize a voice before I hear a callsign. In this case it happened via a somewhat wobbly regen and the internet.
THE RADIO GODS HAVE SPOKEN.
Now where did I leave those 12AU7s?
Friday, January 24, 2020
Mr. Carlson's Lab Attacked by Dangerous Canadian Snow Static! (Video)
Even when describing something as simple and basic as snow, Mr. Carlson is electronically awesome. This video made me realize that in the event of an EMP, his will probably be the only lab to survive.
The SolderSmoke Daily News took up the topic of snow static back in 2011. Be sure to read the comments, especially the one from KC7IT about the QUARTER INCH ARCS that woke him up in the dorm at MIT. Check it out:
https://soldersmoke.blogspot.com/2011/10/snow-static.html#comment-form
I've got to get one of Mr. Carlson's 2020 calendars!
Monday, November 11, 2019
SV3ORA's Amazing Homebrew Web Site
For an example that his apropos of recent ET-2 discussions, Kostas has an extensive page with many, many versions of his hyper-minimalist rig:
Monday, June 24, 2019
Mike KL7R's Web site on Way Back Machine
And thanks again to Walt K3ASW for voicing concern about the disappearance of Mike's site. Good to know that all is not lost.
https://web.archive.org/web/20131126190933/http://kl7r.ham-radio.ch/
Wednesday, May 15, 2019
Stop what you are doing! Go to the Radio Garden!
Monday, April 10, 2017
Very Useful Toroid Info Web Site
Sunday, July 26, 2015
Pete has a Blog!
Check out the new blog from Pete, N6QW. We hope he continues to post. Please link to his blog and help spread the word. Here it is:
http://n6qw.blogspot.com/
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Tuesday, July 21, 2015
Interview on "QSO TODAY" Podcast with Eric 4Z1UG
Last week I was interviewed by Eric 4Z1UG for his podcast "QSO Today." I was at first reluctant to do this, simply because of time constraints: I already have difficulty finding the time to record SolderSmoke. But when I listened to Eric's interview with Wayne Burdick N6KR of Elecraft, and learned that they had been teenage ham radio friends, I wanted in! Our interview was a lot of fun. You can listen to it here:
http://www.qsotoday.com/podcasts/n2cqr or via ITunes.
Please help Eric out by subscribing to his podcast and by linking to his site. I'm sure he'd appreciate comments on our interview.
Thanks Eric! And as Shep would say: EXCELSIOR!
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20





