The death of the GDO
At one time, what set you out on the path of becoming a real radio amateur
was your construction of your Grid Dip Oscillator (or transistorised ones);
the most useful of tools for many applications in the shack.
Has tht worthy insrument noe died-the-death in the face of developments
such as N2PK and VNWA, and antennae analysers from the llikes of MFJ?
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