Hello,

I'd like to build a simple receiver for 20m band. Saying "simple" I
don't mean a "starter project" - I've built my first direct conversion
receiver for 3.5 MHz already. I'm looking for something more complicated
than basic DC receiver with 2 transistors + LM386.

My goal is significantly better CW reception - I don't care about SSB.
Is an op-amp filter before amplifier the only method to get good
selectivity in DC receivers? Or maybe I should try a simple superhet?

The most important thing is to choose a good project. I know there are
famous kits like ones from Ten-tec etc., but in my case the costs of
delivery could reach 3/4 of the kit's retail price, so I'd rather go for
a well-established circuit from Internet and build it from the scratch.
Could you recommend me a project that was copied with success by many
hams, designed with the idea of an easy alignment by beginners
i.e. based on "tolerant" circuits without tendency to oscillations and
other surprises ?

thanks in advance,