"Lidia" DCR for 40M band

DCR is direct conversion receiver, i.e. detection by hetrodyning a frequency at or very near the receiving signals frequency.
Results in a direct audio conversion "mixer product"

Inspiration:

https://www.youtube.com/watch?v=I1iyT2LcmxQ

http://www.sq6kin.strefa.pl/lidia40/lidia_40.html

Technical:



Construction



I am using a conventional mesh tuning capacitor; instead of varactor diodes (old school!)

© 1Q 2018