SolderSmoke Daily News -- Ham Radio Blog

Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com

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:
Sunday, April 28, 2024

A Soviet Tube in Cuba: The "Little Spider"

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I hope readers have picked up on the discussion of the Islander DSB rig out of Cuba. We had a bit of a breakthrough on this recently. I'...
3 comments:
Saturday, April 27, 2024

Cloud Chamber Finale

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  Today's aparatus (above).  Chamber is larger and I left the bottom sealed.  It sits directly atop a chunk of dry ice.  The spongeat th...
3 comments:
Friday, April 26, 2024

Re-building the Islander DSB/CW Tube Rig in Cuba

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The VFO Board The "motherboard" for an Islander Islander boards recently obtained in Cuba by CO7WT Pavel CO7WT is making great pro...
Wednesday, April 24, 2024

Big Success with Cloud Chamber

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  My Cloud Chamber It was time to take a break from building SSB transceivers.  I wanted to build something completely different.  I went wi...
4 comments:
Tuesday, April 23, 2024

EXCELLENT Video Series on RF Amplifier Design

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Run, don't walk, to this video series by RF MAN.   He is truly, THE MAN!  Pete N6QW found this series, passed it to Dean KK4DAS, who ale...
11 comments:
Sunday, April 21, 2024

The War of the Worlds -- In CW -- By Chuck Adams AA7FO

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This is for CW fans, or for those wishing to improve their CW skills.  You can now listen to the entire H.G. Wells book in CW, thanks to Chu...
3 comments:
Friday, April 19, 2024

Deep Space Station 43 -- Canberra, Australia

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  https://spectrum.ieee.org/apollo-era-antenna-voyager-2 From the IEEE article:   The dish’s manufacturer took great pains to ensure that it...
Tuesday, April 16, 2024

The Rad Receiver from N6GWB

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Geoff N6GWB and his eldest have produced a really wonderful receiver, and have joined the elite ranks of those who have built their own rece...
3 comments:
Monday, April 15, 2024

A QRP Quiz Question

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  I have the answer from an excellent and authoritative source.   Here is the question:  The rig I bought for one dollar at Winterfest was p...
3 comments:
Wednesday, April 10, 2024

Homebrew-to-Homebrew Contact on 17 meters with DL2RMM (Video)

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  Here is short clip of a very cool HB2HB contact on 17 meters.  Thanks Jens!  Check out his QRZ page here:  https://www.qrz.com/db/DL2RMM
1 comment:
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:
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