Roger G3XBM's (Mainly) Amateur Radio Blog

  Whilst trying to find something else I came across this A5 booklet. It must date from the mid 1970s? The ZN414 was a 3 pinned TRF receiver...

On Monday, we have one of our grandsons here. Whilst he is here, he wants to build a radio as part of his Design and Technology (DT) work. I...

My original post was banned by the censors as it violated blogger guidelines, probably as the algorithm saw certain words.  Talk about nanny...

Many years ago when my sons were little I made them a couple of Medium Wave AM radios using just a ZN414 3-pin TRF receiver IC. It worked ...