Showing posts with label Hayward--Wes. Show all posts
Showing posts with label Hayward--Wes. Show all posts
Friday, May 30, 2025

Hiss, Filters, QRM, and Hearing Loss: Do we need AF filters in direct conversion receivers?

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L6 is the 88mH toroid Messages on Discord about the need to knock down higher frequency audio response in the SolderSmoke direct conversion ...
1 comment:
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, May 19, 2025

Honorable Mention: Andreas DL1AJG's THREE SolderSmoke Direct Conversion Receivers for Biologists

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  Andreas DL1AJG was another of those intrepid hams who,  in the dark of winter 2023 took up the SolderSmoke Direct Conversion Receiver Chal...
3 comments:
Friday, March 7, 2025

Homebrew Challenges Much Like Ours: The Direct Conversion Receiver of Wes Hayward W7ZOI and Dick Bingham W7WKR -- QST November 1968

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  https://www.worldradiohistory.com/Archive-DX/QST/60s/QST-1968-11.pdf I was thinking about some of the challenges faced by the builders of ...
3 comments:
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:
Thursday, January 30, 2025

Diode Ring VFO Part II: How Much LO into a Diode Ring?

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Last week we were trying to determine how much LO injection we really need in the SolderSmoke Direct-Conversion receiver .  The answer seeme...
2 comments:
Tuesday, December 24, 2024

So Many Great Pictures, So Much Radio History

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  I make it a point to go back to Wes W7ZOI's web site every once in a while.  That is always a good idea. This time I found myself look...
2 comments:
Sunday, December 1, 2024

A 40 Meter Direct Conversion Receiver from M0NTV -- With some SolderSmoke Comments

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Nick's video appears above.  First, let me say FB Nick.   It is nice to see you making use of the AGC amp designed by Wes and Bob,  usin...
7 comments:
Monday, September 23, 2024

Ham Radio -- How To Build Stable Oscillators

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Spasibo Vasily!   Wow, thanks a lot Todd.   There is some great wisdom in your video.  You clearly demonstrate that it is possible to build ...
4 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:
Wednesday, May 1, 2024

KE5HPY Builds a QRP Transmitter

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  FB Chuck, very cool.  Please send us more reports on this rig.   Chuck has been on the blog many times, with many projects:  https://solde...
1 comment:
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:
Wednesday, January 31, 2024

My Manhattan-style Termination Insensitive Amplifier Production Line

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  You gotta love the name, right?  It sounds like some sort of psychological condition.  Perhaps someone who just doesn't care  if his g...
3 comments:
Tuesday, September 26, 2023

F6CRP's FB Homebrew Receiver

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I like F6CRP's homebrew receiver.  I like the way he presents it (block by block) and I like the inclusion of the W7ZOI IF board. The JF...
2 comments:
Sunday, May 28, 2023

Jerry KI4IO (Wizard of Warrenton) Describes His ALL ANALOG Phasing Transceiver -- Bob Crane FDIM interview #3 (audio)

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Wow, this one really resonated with me.  Jerry had me won over when, early in the interview, he described his decision to dispense with the ...
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:
Monday, April 3, 2023

Technology and Methods from Wes Hayward W7ZOI

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Great stuff.  Lots of wonderful articles filled with wisdom to ponder.    http://w7zoi.net/oldtech/ponder.html Thanks to Tony G4WIF for spot...
1 comment:
Friday, February 10, 2023

SolderSmoke Podcast #243 -- HI7/N2CQR, uBITX mods for 10 meters, High-School Direct Conversion Receiver Project Launched (Success!) Mailbag

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  DC RX and one of the PTO boards we built as demos last night.  February 10, 2023 SolderSmoke Podcast #224 is available.  http://soldersm...
12 comments:
Saturday, October 15, 2022

DC Receiver: 100db Gain? Diplexer? VFO in a box?

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Here is a progress report on Direct Conversion Receiver developments. Dual Tuned Circuit, Diode Ring with Diplexer, PTO VFO from Farhan...
8 comments:
Thursday, October 6, 2022

Adding a Diode Ring to the Direct Conversion Receiver, And How the Diode Ring Works

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I take a look back at Wes Hayward's classic DC receiver from the November 1968 QST. I then try to describe how diode ring mixers work (...
2 comments: