Showing posts with label SPRAT. Show all posts
Showing posts with label SPRAT. Show all posts
Sunday, October 12, 2025

Understanding Mixers -- A Free Book Excerpt -- Enlightenment from SPRAT

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https://soldersmoke.com/book.htm      We've recently been talking about mixers, and it has become apparent to me that there is a big gap...
6 comments:
Thursday, September 25, 2025

GQRP Convention 2025 -- SolderSmoke Direct Conversion Receiver Presentation

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We were really pleased to have been invited to speak to the GQRP club's 2025 convention.  We talked about the SolderSmoke Direct Convers...
4 comments:
Friday, June 6, 2025

A Tale of "Ten Minute Transmitters" and "Tuna Tin Twos": N2CQR Goes Back to CW QRP!

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I nspired by K1OA and KA4KXX , I put the SolderSmoke DC receiver to work on the CW portion of 40 meters. At first I used a very (perhaps ov...
5 comments:
Monday, May 26, 2025

Paul WA1MAC GETS DOWN TO BRASS TACKS with his FB GLUE STICK SolderSmoke Direct Conversion Receiver

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  Wow, look at that beautiful build of the SolderSmoke Direct Conversion Receiver.  We haven't received a "proof of life" vide...
2 comments:
Friday, April 25, 2025

Adrian M7EFO's FB SolderSmoke Direct Conversion Receiver

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Adrian has completed a very FB direct conversion receiver.  Really nice work. It is especially pleasing to see that Adrian is a member of GQ...
1 comment:
Wednesday, March 13, 2024

Using the RF Power Amplifier of the BITX40 Module

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  PA shematic from the BITX 40 Module Click on the diagram for a better view C.F. Rockey W9SCH (who alerted us in SPRAT 22 to the chicken sa...
5 comments: