Homemade HAM Radio CW/SSB receiver for 20m скачать в хорошем качестве

Homemade HAM Radio CW/SSB receiver for 20m

Update3: For your own safety, please do not post email address in comments. Update2: I am still getting requests for better resolution version of the schematics or the PCB design. Unfortunately, I cannot find the original designs, sorry about that. Once I find it I will post it here. Update: Because there are lot of requests, there is the schematics of this receiver:   / 1   My homebrew CW/SSB receiver for 20m band based on NE612 chip. The crystals in the ladder filter are not perfectly matched. The tuning potentiometer is recycled and has mechanical flaws so I shoud hold it with my thumb while tuning. :-)