Ryan Flowers over at MiscDotGeek posted a how-to on building a direct conversion receiver:
In the first installment of this series, we discussed why we’re building a Direct Conversion receiver and talked about some basic ideas. In this installment, we explore what it takes to make the leap from a printed schematic to something physical that works. Follow along!
More details at MiscDotGeek.com.
Steve’s (a.k.a N8NM ) ‘$20 Bill’ DC receiver:
If you follow Bill, N2CQR’s SolderSmoke blog, you know that he’s working on a simple DC receiver of his own, which, along with his aversion to using the magic chips, served as inspiration for this rig, which is how it got it’s name: $20 is my guess at what it’d cost to duplicate, and Bill, of course, is Bill. The alternate name is based on my belief that the last thing the world needs is another 40m DC receiver.
More details at Steve’s Eclectic Radio blog.