Just go to http://soldersmoke.com. On that archive page, just click on the blue hyperlinks and your audio player should play that episode.
http://soldersmoke.com
I've been holding off on making this video until I improved the stability. N6QW is vigilent! I only did this video after certifying that it meets the Juliano Stability Criteria. I had to dispense with the polyvaricon and go with an air variable. We will be talking about this on the SolderSmoke podcast next weekend. I hope to put on the blog a stage-by-stage discussion of how to build this receiver. The dial from HI8P and the knob from a SW receiver that Elisa gave me definitely add soul to this new machine. JOIN THE RANKS OF THE TRUE HOMEBREW RADO MAKERS! BUILD A RECEIVER! BUILD ONE OF THESE!
All that hiss! Try a simple low pass audio filter. Eg 100nF or so across the volume control or even a capacitor across the audio output connection. The top right of the front panel is also crying out for an RF gain control!
Awesome Bill, and pretty stable, I've been working on similar designs: DC receivers with VXO's or LC VFO's and as suggested by Peter Parker a low pass filter does wonders on these things. the ones on SSD Page 82 are a bit more inolved but work relly well, much easier to tune without hearing all those high frequency audio components from all over the band. 72 and FB Bill, Dan -HK4DEI.
Very Nice indeed and you get the quality "passed" sticker for having a rig as stable as a Si5351. Wow -- with a bit more work you could turn that into a Superhetrodyne Receiver and then with a few more parts a full fledged SSB transceiver. How cool would that be?
"SolderSmoke -- Global Adventures in Wireless Electronics" is now available as an e-book for Amazon's Kindle.
Here's the site:
http://www.amazon.com/dp/B004V9FIVW
Bill's OTHER Book (Warning: Not About Radio)
Click on the image to learn more
Where are the readers of SolderSmoke Daily News?
Pete Juliano N6QW
SolderSmoke Co-Host and Master Homebrewer
Dean Souleles KK4DAS
With beret and with a Michigan Mighty Mite in hand
SARC Bi-weekly Bulletin
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January 21, 2025
Issued during the first and third week of each month, it provides a quick
reference for member activities, resources and links for the f...
January 21, 2025. More Low Power Suggestions.
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For starters, visit Todd's K7TFC website:
https://www.mostlydiyrf.com and load up on the really good stuff.
The reason I start with this is that Todd sent m...
Part Obituaries continued : R.I.P -- dear J310
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Greetings ###
I'm working on a common gate RF amp using the ubiquitous RF home brewer's
JFET, the J310. I happened to go on DigiKey and Mouser. Here's w...
Soldersmoke Direct Conversion Challenge - revisited
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I built the direct conversion receiver described on the Soldersmoke blog a
while back but ran in to several problems. The audio chain was very
unstable and...
NanoVNA-H4 – Surely Smith is better? – #2
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NanoVNA-H4 – Surely Smith is better? discussed a correspondents
contention that “surely a Smith chart is superior for antenna system
tuning, a universal di...
Hollow-State Design, 3rd Edition
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Hollow-State Design, 3rd Edition is available from: Lulu Press:
tinyurl.com/hollowstatedesign3 eBay: search for “hollow-state design”
Electric Radio bookst...
I Finally Bought My Dream Airplane
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Aviation has been a love of mine since I was a very little person. Living
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Texa...
2000 47pF Caps ...
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An unexpectged package arrive in the mail today. Did you ever wonder what
2000 47pF NP0 capacitors look like? Thanks to John, AB2XT I will never run ...
New QRP Cluster From OM0ET and OM6APN
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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...
Daylight Again – An all Analog Radio
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What’s all this? In 10 seconds, A high performance, 7MHz, 5 watt SSB rig
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range 3D ...
Digi-chirp! Digital synthesis of ‘nostalgic’ CW
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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
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SMA Torque Wrench for the NanoVNA (uncalibrated)
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I have been using SMA connectors on most of my projects, and have
occasionaly gotten a slightly different reading than I had expected. Using
the NanoVNA, ...
Modifications to the Dayton/FDIM-2019 Antuino
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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...
Raduino as NBFM TX
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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 ...
QRP Labs shop!
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[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...
Posts
All that hiss! Try a simple low pass audio filter. Eg 100nF or so across the volume control or even a capacitor across the audio output connection. The top right of the front panel is also crying out for an RF gain control!
ReplyDeletesi5351, si5351, si5351, si5351.......
ReplyDeleteFB OM 73
ReplyDeleteAwesome Bill, and pretty stable, I've been working on similar designs: DC receivers with VXO's or LC VFO's and as suggested by Peter Parker a low pass filter does wonders on these things. the ones on SSD Page 82 are a bit more inolved but work relly well, much easier to tune without hearing all those high frequency audio components from all over the band. 72 and FB Bill, Dan -HK4DEI.
ReplyDeleteNice job as usual Bill.I hope u can publish your design soon. I am sure many of us are eager to replicate it. Best 73 de AJ4BP
ReplyDeleteHi Bill,
ReplyDeleteVery Nice indeed and you get the quality "passed" sticker for having a rig as stable as a Si5351. Wow -- with a bit more work you could turn that into a Superhetrodyne Receiver and then with a few more parts a full fledged SSB transceiver. How cool would that be?
Nice looking box -- ala retro 1940's 50's.