Monday, March 31, 2025

Brian KI7LKB's SolderSmoke Direct Conversion Receiver with a FB Unique PTO Coil form Using a Coat Hanger Tube!


Brian KI7LKB has built a very FB SolderSmoke direct conversion receiver.  He made the PTO coil form himself, using the cardboard from a coat hanger as the tube. (I have used these tubes for many homebrew inductors.  I thought I was alone!  FB Brian.)  In the video above we see Brian's receiver pulling in SSB signals. 

Brian writes: 

Finished the DCR! Even with S-7 noise, from here in Southern Nevada, picked up stations in Canada, Texas and Louisiana. Built to plans, except the PTO coil form was fabricated from a clothes hanger tube mounted in a fiberglass frame. Antenna is an inverted “V”. A ham since 2017, I’m always looking for something to build, and the Soldersmoke podcast provided an educational and appropriately challenging project. I particularly like the fact it is modular, and I’ve already identified other applications for the audio amplifier. Your guidance was excellent and I learned a bunch. Thank you!

Here is Brian's receiver at work in the CW portion of 40 meters: 


Thank you Brian.  Congratulations!  You homebrewed a receiver! 

For more information on how you too can build the receiver: 


Join the discussion - SolderSmoke Discord Server:

https://discord.gg/Fu6B7yGxx2

 

Documentation on Hackaday:

https://hackaday.io/project/190327-high-schoolers-build-a-radio-receiver

 

SolderSmoke YouTube channel:

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