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
Wednesday, July 8, 2026
A Very Nice Audio Workbench -- With Lots of Great Ideas
Friday, July 3, 2026
A Really Really Complete South African Workshop
Thursday, July 2, 2026
Vintage Audio Restoration: Glue, Fusible Resistors, and Relays
This guy is restoring VINTAGE audio gear. It is definitely younger than the Boatanchors we usually work on, but it is a lot older than more recent gear that is made with largely pick-and-place machines and surface mount components. There are mostly through hole components here.
There are some challenges I've never thought about: glue that over time starts to mess up the circuitry. Fusible resistors? Who knew? And then there are relay contacts that go really bad. We use a lot of these kinds of relays.
All in all, there are a lot of good ideas in this video. His other videos are probably worth watching too. I think it will be especially useful for my friend Bob, KD4EBM who does a lot of work in this area.
Please let me know what you think. Comment below.
Tuesday, June 9, 2026
The Snake Shack of the Amazon
https://www.nytimes.com/2026/05/29/science/snake-collector-mera-ecuador.html?unlocked_article_code=1.o1A.2O0_.gzrRsoBWgWvH&smid=url-share
Think of this as part of our "other kinds of workshops" series. In this case, it is literally another kind of shack.
The article describes an understandable cultural message that says snakes must be killed. Like the people in this story, we have to fight against similar cultural issues in the Dominican Republic.
Anyway, I liked the story. I hope the link survives.
Saturday, May 23, 2026
Building an Electronics Work Bench (and fixing an old CNC Lathe)
Sunday, May 10, 2026
A Very Impressive Workshop from the UK
Monday, April 27, 2026
Other Workshops: Homebrew Sailboats
Friday, March 20, 2026
Solar Powered Drone from South Africa
I've been flying a DJI 4K Mini drone here in the Dominican Republic, so I am interested in the whole drone thing. The technology involved is pretty amazing, with many of the drones featuring GPS tracking systems, onboard compasses, and inertial (gyroscopic) stabilizers. This in addition to high resolution, stabilized cameras, look-down landing cameras, and obstacle avoidance systems. Oh yea, if you lose sight of the 249 gram drone, you can just hit the HOME button and it will miraculously fly to its start point and land. Wow.
This fellow in Capetown takes things quite a bit further. I like his solar-powered drone. He has a really cool workshop. There is something for everyone here: He uses 3-D printing, carbon fibers, and computer assisted design tools. And he does a lot of good-old soldering. I really like his portable wind meter. I will get one for this very windy location in the Dominican Republic.
Friday, February 13, 2026
The Mahbood Radio Service Company of Hyderabad, India
Saturday, December 20, 2025
Bricoleur -- "Someone Who Fixes Stuff with Whatever he Finds Around"
Tuesday, December 9, 2025
Some Great Analog Pictures from MIT Building 20 and other Analog Locations
Here is a picture of Jim Williams taken through a Tektronix oscilloscope camera. I never used one of these things, but Dean KK4DAS did. Here are the details of the shot:
I took this great photo of Jim Williams with a Tek scope camera sometime around 1977 or so. There was no digital (or analog) manipulation. It was a simple double exposure. I first shot a scope waveform, then just to see what would happen, I pulled the camera off the scope, stuck it Jim’s face and snapped another shot before pulling the film. I never expected it to look this good….a view from inside the oscilloscope!
Here is the collection of pictures that this 'scope shot came from:
https://lensprojects.com/analog-history/
Thanks to Len Sherman for the pictures. On his site you will see, among other things, the upside down Christmas Tree of dead parts, and Bob Pease's Volkswagen Beetle.
More info on MIT's Building 20:
https://en.wikipedia.org/wiki/Building_20
Saturday, November 29, 2025
California Typewriter -- Full Movie with Tom Hanks
Friday, November 21, 2025
A Great Story about the Benefits of Repairing Old Gear -- The Bremerton Typewriter Company
Listen to this in its audio form. Maybe follow along with the (type?)written text. Enjoy the pictures and the videos and -- above all -- the message.
This wonderful article has a lot to say about the value of repairing -- and knowing how to repair -- old gear. Not just typewriters, although that is very cool. But this article also pertains to old boatanchor ham gear, and to the skills needed to homebrew rigs today. And it says a lot about mentorship.
I really liked this story.
Wednesday, May 7, 2025
Building "Newt" for "The Lightning Code"
Sunday, April 27, 2025
Building a Helio in Alaska from 75 year-old Blueprints
Monday, March 24, 2025
Forbidden Workshop Practices -- Part 2 -- By Van Neistat
Sunday, March 23, 2025
Sunday, March 16, 2025
CuriousMarc Gets an Apollo DSKY Running. FPGA AGC Computer. Rope Memory.
Tuesday, January 28, 2025
Other Workshops: Making The World's Smallest Motor
Wednesday, January 22, 2025
SolderSmoke Direct Conversion Receiver Challenge -- Soldering!
The DCR challenge is going well, and we have several builders making good progress. We noticed that some first-time builders are having a little trouble with soldering. Cold or weak solder joints are the bane of the of the homebrew builder’s existence. It happens to all of us. A board that was working fine suddenly is not working – you poke around and touch some part and the board springs to life – you just found a cold solder joint. Dean, KK4DAS put together a short bonus video just on soldering. He covers the tools you need for a basic soldering station, and step-by-step instructions for reliable soldering Manhattan Style.
