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Blogs and Websites and Groups
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From 1943 ~ How a vacuum tube works. More Progress. - An interesting You Tube video from 80 years ago on: How a *Vacuum Tube Works*. It's short but lays out the fundamentals of operation of a Triode Vacuum Tub...
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Voice of Vietnam features Carlos’ Illustrations in Mailbag Post - Many thanks to Carlos Latuff who writes: Dear Thomas, I’m happy to share with you and all our friends at the SWLing Post the feedback I received from the F...3 hours ago
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Re: Online Circuit Sim - Quote from: Tom WA3KLR on *Today* at 09:04:30 AM Alan, try this to pass the LTSpice file here: Take that .asc file and make a copy, change the file extensio...11 hours ago
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F2 Dev Notes and US-4571 at City College San Francisco a Week Apart - This week I spent some time tightening up the workflow for comparing F2 ionospheric data across different POTA outings. It turns out documentation real...12 hours ago
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For Bug Fists on the Go: The Don Lawson WB9CYY Bug Emulator - by Bob Leichner (WO6W) Are you a dedicated bug user? Do you miss your bug while out on a POTA or SOTA activation? Would you like to operate mobile using a ...19 hours ago
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Ireland's first cubesat EIRSAT-1 comes to end of life... - Back on the 1st of December 2023, Ireland's first satellite called EIRSAT-1 was launched on a SpaceX Falcon-9 rocket from Vandenberg Space Force Base in ...
23 hours ago -
Is high octane fuel worth it in a Toyota Corolla Hybrid? - I was wondering if high octane petrol was worth the extra price. I asked two car oriented friends recently and they both said “absolutely - wouldn’t not us...
2 days ago -
The Communicator September - October 2025 - *Back With a Fall Issue* This publication, "The Communicator" from Surrey Amateur Radio Communications (SARC), serves as a bi-monthly electronic periodical...
3 days ago -
W1WEF - Episode 530 - Jack Schuster - W1WEF In this episode of QSO Today, we sit down with Jack Schuster, W1WEF, whose amateur radio journey spans more than 73 yea...6 days ago
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HRWB 244 - A Conversation With Eric 4Z1UG, host of the QSO Today Podcast - In this episode we talk with Eric Guth, 4Z1UG, the host of the popular QSO Today Podcast. Eric has produced over 500 interviews with interesting and inf...1 week ago
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Exploring the Ameco PCL-P Nuvistor cascode preamp/preselector - *"And now, for something completely different!"* This past January - at Quartzfest - there was a table covered with "junque" and taped to it was sign wi...
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The "George Batterson 1935 CW QSO Party" - Summary - The first *George Batterson CW QSO Party* has concluded and the results are in! The "*GB*" was introduced to honor George Batterson (W2GB), who along wi...
4 months ago -
KK4DAS MB 20 Transceiver Complete - The MB 20 transceiver is now complete. The rig is a homebrew 10-watt 20-meter SSB transceiver. The VFO module was an ebay purchase of a salvaged Yeasu...
4 months ago -
A Curious 9 MHz Crystal from Mouser Electronics - Just a quick post to share info about a good 9 MHz crystal sold by Mouser Electronics. I last purchased batches of crystals for xtal IF filters back in 2...
5 months ago -
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40m Pelican Case SSB Transceiver - See YouTube channels for details: http://www.youtube.com/c/CharlieMorrisZL2CTM *Test code for the LCD and Si5351* #include ...
7 months ago -
Hollow-State Design, 3rd Edition - Hollow-State Design, 3rd Edition is available from: Lulu Press: tinyurl.com/hollowstatedesign3 eBay: search for “hollow-state design” Electric Radio bookst...10 months ago
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I Finally Bought My Dream Airplane - Aviation has been a love of mine since I was a very little person. Living in Nevada, seeing posters and ads for the Reno Air Races, specifically the Texa...10 months ago
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Landscapes - %BLOGLNK% Landscapes The post Landscapes appeared first on 28° North Sailing.1 year ago
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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 ...3 years 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 bands3 years 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...3 years ago
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A battery powered 50W 160m AM transceiver for your backpack - This project is a compact 160m AM transceiver capable of up to 50 watts of fuly modulated carrier, designed for portable use. The transmitter portion uses...3 years ago
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Modifications to the Dayton/FDIM-2019 Antuino - The Dayton Antuino has sub-optimal performance. This is a short note on improving it to an 80 db range of measurements. The trouble with Antuino 2.0 (the o...6 years ago
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Raduino as NBFM TX - Here is a neat, 30 minute hack for your Raduino to turn the Si5351 into a pretty stable, solid NBFM transmitter. The hack is to add a varactor diode in ...
7 years ago -
QRP Labs shop! - [image: Shop] All QRP Labs kits may be ordered online securely at the shop, with PayPal payment. *Click here to visit the shop!* *Click!* *Shop! Order...10 years ago
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A 2 Transistor Transmitter Powered From a 9V Battery - A couple of days ago I built a simple 2 transistor transmitter on a small piece of PCB material. I used the style of construction that seems to be becoming...14 years ago
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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...16 years ago
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E. Howard Armstrong on a Czech Stamp
Blog Archive
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- QCX SSB -- But How Much QCX Remains?
- AJ4SN Homebrew
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- Antennas, Money, and Ham Psychology
- Emilio's Mirror of JF1OZL's Site
- Radio Art from QST December 1951
- SolderSmoke Podcast #222 Antennas, Phasing, VFOs, ...
- I,Q, and HRO: VK2BLQ's Phasing Receiver with an HR...
- Replacing Electrolytic Caps in my Drake 2-B (Video)
- SolderSmoke on Ham Radio Workbench Podcast
- Homebrew Az-El Satellite Antennas from the Philipp...
- Video on Galaxy V VFO IN USE with BITX40 Module --...
- Nick M0NTV's Quarantine Rig: The Bread Bin 80
- N5GTF's FULLY INDOOR Quarantine Receiver and Antenna
- Video on the Galaxy V VFO Project
- An Understandable Chip: The LM386
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- QSO Today -- Episode 300 -- Panel Discussion
- N6ORS's Hot Mustard Phasing Board. And how Phasing...
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
I remember reading an Arthur C. Clarke story about a light sailor called: The Sunjammer when I was a kid. It was in the March 1964 issue of Boys' Life - Google Books has it up if you'd like to read it: < https://books.google.com/books?id=HEFsdunJeZMC&pg=PA3&dq=the+sunjammer+march+1964+boys%27+life&hl=en&sa=X&ved=2ahUKEwi_nNCho6DpAhUHK80KHb6GBgkQ6AEwAXoECAEQAg#v=onepage&q=the%20sunjammer%20march%201964%20boys'%20life&f=false >
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