ZZRX-40 (Top and Back)

    The ZZRX-40 is a 40-meter CW or SSB receiver kit. It can be operated in crystal mode or can be tuned (with a fine touch) over a wider range of frequencies, by configuring jumpers to use an internal VFO. The internal tuning control is a varactor.  The kit, which includes the bright red enclosure
shown in the photo was enjoyable and instructive to build.

    ZZRX-40 (Four State QRP Group)

    
Demos:
        CW: cw.mp4
        SSB (internal VFO): ssb.mp4
        External VFO: xVFO.mp4
        Frequency: Freq.mp4



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