At age 14... whit success. (Sorry, miracle is for believers!) Alonso was born June 15 1945.
I know details of first detection. From his patio, Alonso detect in direction of a church. With permission of the priest (catholic), they excavate in the site and found silver handles of coffins. In the past, the catholic christians was bury below floor of the churchs, in some countries.
But, in his childhood, Alonso was involved in other things, he built other kind of apparatus, motors, rockets, etc. At this time, Alonso was teach in electricity by an ex IWW German soldier, called Haber, he was an inventor. Haber was radiotechnician and invent a metal detector (during IWW) for unearth unexploded ordnances via low frequency induction (audio range) in the terrain with metalic stakes!
In some parts of his annotations I found dates from feb. 1958, this is the real year of starting in long range detection experiments.
But a man called Toto Coronel (in this time -1959-, 34 or 35 years old, today 80-81) insist in to build metal detector for long distance based on radio (they found some information about metal detection via radio). This information helps him, but isn't enough, regarding was difficult in the first moments classification of material. Alonso and Mr. Toto Coronel work in an idea wich works.This is the old detector, hand-drawing by Alonso (please, can't post other details, as schematic):
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10-15-2006, 03:34 AM
Linear Mode
