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Blogs and Websites and Groups
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MFJ Enterprises to close their manufacturing facility in Mississippi - *25th April 2024:* MFJ Enterprises manufacture a wide range of products for the amateur radio market and their most recent catalogue comes to some 90-pag...
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75A4 - Question for the board: Does anyone service the 75A4 in this day and age? Mills is out of it. Also: Look at these capacitors. Would they be a good substi...58 minutes ago
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Power standing wave null? - A social media posting in a very long thread with a lot of wooly thinking recently contained this explanation: If you locate your power meter anywhere alon...1 hour ago
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SOTA, POTA, and a Total Solar Eclipse Adventure: Conrad and Peter Pack It In! - Many thanks to Conrad (N2YCH) who shares the following field report: QRP POTA & SOTA on Killington Peak, Vermont By Conrad Trautmann (N2YCH) Peter (K1PCN) ...11 hours ago
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April 25, 2024. Meter Magic - At times we need to include some form of metering in our homebrew rigs. No, we will not be installing a Nano VNA in a transmitter. But often a current mete...
11 hours ago -
May 2024: From the Isle of Music and Uncle Bill’s Melting Pot - Many thanks to SWLing Post contributor, Bill Tilford, who shares the following broadcast schedules: From the Isle of Music, May 11, 2024 Broadcast: The mai...12 hours ago
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Trying a $15 70cm transceiver HK-188 - Peter, VK3YE, recently posted a video of a pair of 433Mhz transceivers he bought at Aldi for $20. They worked OK but had a number of obvious annoying probl...
18 hours ago -
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HRWB 206 - Operating from Challenging Locations with Dr. Charles Powell NK8O - In this episode we meet our good friend, Dr. Charles Powell, NK8O. Charles is medical doctor specializing in neonatal infant care. In addition to his p...1 week ago
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An Inline RF Step Attenuator for QRPp Work - I don’t need to explain the attraction of low power operation; if you’re reading this, the chances are that you are already a convert. I’ve been operating ...
2 weeks ago -
Using an external clock with the RX-888 (Mk2) - *The RX-888 (Mk2) and external clocking* *Figure 1:* The RX-888 with external clock input *(right)* The enable/disable switch is barely visible behind the...
3 weeks ago -
The 50 Ω audio preamplifier that goes after a diode ring product detector in DC receivers - Part 1 - I posted my longest video to date: I'll post a few images from the video in the days ahead. Making such a big video felt pretty exhausting. Best to yo...
1 month ago -
A 51S-1 Restoration Story - I came across my Collins 51S-1 in a big junkyard in Ankara, Turkey around 2012. It was in a pile with a lot of other electronic scrap, probably from one o...2 months ago
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Building Alfred P. Morgan's "A More Selective Crystal Receiver" - As I’ve been seeing a lot of new membership requests on my Facebook Crystal Radio DX group indicating that they wish to build a crystal receiver, I’ve ...
2 months ago -
January 13, 2024. Just Technical Stuff Today. - https://n6qw.blogspot.com Our New Home!3 months ago
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New QRP Cluster Online From OM0ET and OM6APN - By DX EXPLORER DX EXPLORER Paul OM0ET and Peter OM6APN recently launched a new cluster dedicated to QRP operations. Have a look and I hope you will enjoy...5 months ago
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Digital Modes Transceiver - #include #include #include #include #include #include #define ...7 months ago
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QMX multi-band multi-mode transceiver - {gallery}qmx/0{/gallery} QMX: a feature-packed, high performance, 5-BAND 5W, CW and Digi-modes transceiver kit, including embedded SDR, 24-bit 48 ksps...11 months ago
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3D Printing The Hadley 114mm Newtonian Telescope - Yes, we’re building a 3D Printed Newtonian Telescope called Hadley. It’s being printed in PETG and in the video below, I give a quick tour. My build isn’...11 months ago
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3D printed project boxes - I have been busy with some other things that have kept me away from electronics projects for quite a while. Now I can get back to them, but realize I n...
1 year ago -
Daylight Again – An all Analog Radio - What’s all this? In 10 seconds, A high performance, 7MHz, 5 watt SSB rig Draws just 24 mA of current 90 dB dynamic range, 80 dB close-in dynamic range 3D ...1 year ago
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Adding Enclosure to your sBitx Boards Order - The early buyers of the sBitx board set who bought it for $270 USD might want to also add the enclosure (box) for in the kit. What you will now get is a f...1 year ago
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New post: A “Walkie-Talkie” SSB transceiver for 14MHz or the higher RF bands - To access this article, please click link: A “Walkie-Talkie” SSB transceiver for 14MHz or higher rf bands1 year ago
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Other Electronic Projects • Re: Can I normalize both Mono Amp Outputs? - radm49 wrote: ↑ Mon Apr 25, 2022 3:56 am qmavam wrote: ↑ Thu Apr 21, 2022 8:57 pm Yes, you can use a wall wart for power, you might need to add a capacit...2 years ago
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Digi-chirp! Digital synthesis of ‘nostalgic’ CW - The bottom ends of 80, 40 and 20m are not what they used to be. For starters, the busiest part is the digital segment where computers talk to computers – l...2 years ago
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A New Look for your uBitx! - Adding a "Cool Blue" Display to your uBitx! The standard "green background" with black lettering frequently reminds me that I suffer from Chronic seasickn...
6 years ago -
Hans Summers Homebrew Radio, Electronics and Computing - Radio, Electronics and Computing Projects by Hans Summers I make no claims for technical accuracy, good design, or necessarily even originality for the co...15 years ago
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E. Howard Armstrong on a Czech Stamp
Blog Archive
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▼
2020
(235)
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▼
March
(26)
- Quarantine Rig: VK3YE Resurrects an Old BITX Project
- Paul VK3HN's Portable Rig
- Excellent Video on Maxwell's Equations
- How They Make Chips That No One Can Understand
- Radio History Question: Why 455 kHz as the IF fre...
- Mr. Carlson Restores an All-American Five -- Triba...
- For Inspiration and Education: Dean's Radio Blog ...
- Technical Manual 11-455 -- Radio Fundamentals -- ...
- These Variable Capacitors Work -- Ether or No Ether!
- COVID-19 -- StayInTheShack ("SITS") -- Our Contri...
- AM Diode Detector + 41 and 49 meter Shortwave Band...
- Will, KF4IZE's Beautiful Boatanchors
- Vernal Equinox Today -- Earliest in 124 Years
- Double Trouble: Notes on TWO Hallicrafters S-38E ...
- Ham Radio -- Practicing Social Distancing for over...
- Words to Live By -- From Allan WA9IRS
- SolderSmoke Podcast #219 SPECIAL CORONA VIRUS C...
- Thoughts on How Hams Can Use the Shortwave Broadca...
- QSO Today Interview with Dale Parfitt W4OP
- The Woz on Technology, Surplus Parts, Intercoms, a...
- The Homebrew Rigs I Worked During the First Day of...
- N2CQR Novice Rig Roundup Station
- Boat Knack -- Rebuilding a 1910 yacht "Tally Ho"
- N3FJZ's Al Fresco. BITX-inspired, TIA. 50 Watt, SS...
- Novice Rig Round-Up -- March 7- March 15, 2020
- KG7TR Describes his Homebrew SSB Rigs (Video)
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March
(26)
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