Showing posts with label Filters. Show all posts
Showing posts with label Filters. Show all posts
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:
Wednesday, October 30, 2024

Bill N2CQR Builds Yet Another Mythbuster Transceiver

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  This one is for 20 meters (no need for 75) and will go to the Dominican Republic. 6 crystal filter at 5.2 MHz. VFO from old Yaesu FT-101 ...
7 comments:
Monday, April 8, 2024

Woebot -- An AI-Based Therapy Bot for Us?

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  This was on 60 Minutes last night.  Of course it made me think of our many "Tales of Woe."  Perhaps this could be of use to us. ...
2 comments:
Monday, April 1, 2024

SolderSmoke Podcast #251 Aurora! CBLA, Winterfest, Legal Action Against SolderSmoke, HB sBITX, SDR, Raspberry Pi, Rounded Passbands, MAILBAG

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Aurora Picture by Dean KK4DAS S olderSmoke Podcast #251   4-1-2024 Audio: http://soldersmoke.com/soldersmoke251.mp3 Videos:  Podcast 251 Aur...
8 comments:
Tuesday, March 26, 2024

How to Feel Bad about Carrier Suppression (and How to Get Over It)

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Version 2 of the 15-10 rig continues to give me trouble.  But I guess it is "good trouble" because I am learning from it.  You see...
14 comments:
Friday, November 10, 2023

SolderSmoke Podcast #249 -- Travel, Pete's 6BA6 rig, Books!, VFOs, SDR, Computers, Spectrum Analysers, Transistor Man! MAILBAG

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New VFO for 15-10 Transceiver Schematic below SolderSmoke Podcast #249 is available:  http://soldersmoke.com/soldersmoke249.mp3 There is als...
9 comments:
Monday, September 4, 2023

SolderSmoke Podcast #248 -- Back from the Summer -- Spurs and Filters, S-meters, 6BA6 mania, Shirtpocket rigs, MAILBAG

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The PsssT Kit, coming soon from Mostly DIY RF SolderSmoke Podcast #248 is available for download:  Audio:  http://soldersmoke.com/soldersmok...
4 comments:
Monday, July 10, 2023

Martein's Bandpass Filters - PA3AKE

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Above you can see the really nice 15 meter filter that I built using data provided by Martein PA3AKE.  https://martein.home.xs4all.nl/pa3ake...
9 comments:
Friday, October 7, 2022

How the Diode Ring Multiplies by 1 and -1 -- "The Secrets of the Diode Ring" -- Plus another Bandsweep with the DC RX

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A deeper look into how the Diode Ring detector works: "the particular go of it." Here I rely on a wonderful diagram from the RSG...
8 comments:
Friday, September 16, 2022

Fixing Up An Old Homebrew Rig -- Barebones Superhet and VXO 6 Watter

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  I'm not exactly sure why I pulled this old rig off the shelf, but I'll write up what I did -- I often use this blog as a kind of n...
3 comments:
Thursday, September 1, 2022

New Video: Farhan's Presentation on the "Daylight Again" Analog Transceiver

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LOTS of tribal wisdom in this presentation by Farhan VU2ESE.  For more info, go to:  https://www.vu2ese.com/ index.php/2022/08/04/daylight- ...
1 comment:
Wednesday, August 17, 2022

Daylight Again on the Sunrise Net! Walter KA4KXX Builds a PTO

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Dear Bill:  I had never built a PTO, but after reading Farhan's Daylight Again Transceiver article I cobbled one together with parts an...
Thursday, August 4, 2022

Farhan Takes us Back into the Daylight -- An Analog Rig with a Homebrew Crystal Filter and an LC VFO

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  There is so much radio goodness in this rig and in the blog post that describes it.  Farhan's blog post will keep us busy for a long t...
2 comments:
Sunday, June 19, 2022

A Great Book on Oscillators (Analog LC Oscillators) by John F. Rider (Free!)

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  Thanks to Peter Parker VK3YE for alerting us to this wonderful 1940 book.  John F. Rider -- a real hero of electronic literature -- does ...
1 comment:
Saturday, June 11, 2022

Putting the "Mate for the Mighty Midget" Back to Work -- With a DX-100 on 40 Meter AM

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After working on it for a while I got so fond of my old Hammarlund HQ-100 that I moved it from the AM/Boatanchors operating position over to...