Showing posts with label DeMaw--Doug. Show all posts
Showing posts with label DeMaw--Doug. Show all posts
Tuesday, May 27, 2025

Simplicity, Presence, Mods, and Direct Conversion Receivers

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Over on the Discord server that we set up for the SolderSmoke Challenge project.  One of the guys who succeeded in building the receiver (ku...
Monday, February 17, 2025

Direct Conversion Receivers -- Some Amateur Radio History

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Click on each of the 6 pages below for a clearer view, or on the N5DUX  link at the bottom for a .pdf https://www.n5dux.com/ham/files/pdf/Di...
5 comments:
Sunday, February 9, 2025

Light Beam Communication from the Dominican Republic?

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Mike WN2A sent me the PIC board to generate the CW for my "Lil Slugger" Doug DeMaw transmitter.  Then I started wondering about ha...
4 comments:
Friday, January 10, 2025

"The Magic That Only Comes from a Radio you Built Yourself" -- The Many Benefits of True Homebrew

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  Receiver on the bottom,built around 1997.  Transmitter upper right, built in 1993. Power supply upper left, 1998.   Adventures on the road...

Please Listen for my 10 Meter Beacon! 28.2335 MHz

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  There it is, in all its glory.  The transmitter itself is a Doug DeMaw "Lil' Slugger" CW transmitter for 10 and 15.  I built...
7 comments:
Friday, December 13, 2024

SolderSmoke Podcast #255 -- Accept the HB Challenge!, DeMaw SSB, Brilliant TR-3, Tube Talk, Ground Truth, Tales of Woe, SDR RX, Pico Balloons, MAILBAG

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Mythbuster II -- 20 meters only SolderSmoke Podcast #255 is avalable:  Audio:       http://soldersmoke.com/soldersmoke255.mp3 Video:        ...
8 comments:
Sunday, July 7, 2024

Will KI4POV on QSO Today with Eric 4Z1UG

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I really liked Eric's interview with Will KI4POV:   https://www.qsotoday.com/podcasts/KI4POV Will has appeared on this blog and podcast ...
2 comments:
Monday, April 29, 2024

Old Tricks, Lore, and Art -- Freezing and Baking our LC VFOs -- An Example from Cuba

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Pavel CO7WT explained why Cuban hams used a process of thermal endurance to improved the frequency stability of their homebrew rigs:    ----...
5 comments:
Monday, April 8, 2024

The Doug DeMaw Article that got me into Homebrew Double-Sideband

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Just click on the images for a better view Pete WB9FLW asked for this.  This was an important article for me -- it paved the way for my entr...
1 comment:
Wednesday, April 26, 2023

Retro QRP Rigs of the 1960's, 70's, and 80's -- Video by Mike WU2D

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It is time to put aside (again!) all of the heated ideological arguments about the power level that defines "low power."  Just sit...
3 comments:
Thursday, April 13, 2023

The Franklin Oscillator: A Super-Stable VFO. Why No Attention? Why So Little Use?

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My Franklin VFO Lee KD4RE of the Vienna Wireless Society has been talking about the Franklin oscillator. He has been telling us that it is v...
21 comments:
Tuesday, April 11, 2023

Arnie Coro: Jaguey Rig Designed in 1982, More info on the Rig

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Jaguey, Matanzas, Cuba Dxers Unlimited's mid week edition for 23-24 October 2007 By Arnie Coro Radio Amateur CO2KK ... My own personal ...
Friday, December 2, 2022

But why? Why Can't I Listen to DSB (or AM) on my Direct Conversion Receiver?

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I've said this before:  I just seems so unfair.  We just should be able to listen to DSB signals with our beautifully simple homebrew Di...
9 comments: