Esteban was right!
Geo,
That looks really good! I'm going to try a different tact by putting the primary leads of an audio transformer in series with the power lead of my laser and connect the secondary leads to an audio amplifier and see what is heard when scanning over various metals and minerals.
I think there is much latitude experimenting with lasers where before we have been using the electromagnetic methods for close to a century now to find metals and ores.
I sure hope Esteban gets better soon. I wish I had his email address so I could write him. If anyone talks with him please tell him Randy says hi.
Thanks.
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