The face that FM receivers operate on
pretty high frequencies makes their practical realization
somewhat difficult, but most of the problems, as in many other
amateur builds, originates from building the coils, except the
self-bearing, small-inductance coils (without the coil body),
which are easy to make, especially if there aren't many of them
in the device and if no special instruments are required for
setting up their proper inductance value. The coils used in this
FM receiver are just like this, and there are only two of them,
making the practical realization much easier.
Short-Wave Regenerative Receiver For AM and DRM
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