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From: rbowman <bowman@montana.com>
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Subject: Re: The joy of FORTRAN
Date: 9 Mar 2025 19:40:57 GMT
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On Sun, 9 Mar 2025 04:55:42 -0400, c186282 wrote:

>    Came across old diagrams - Quaker-Oats round boxes wrapped to form
>    the antenna transformer/inductor, galena crystals, sharpened point
>    contact you had to tweak around by hand looking for the 'sweet spot'.

My uncle had one he'd built as a kid, probably c. 1915, with the crystal 
and cat whisker. By my time you used a 1N34, which took all the fun out of 
it. 

I spent a winter in AZ working my way through radio history. iirc it was a 
ARRL publication on vintage radios. It's interesting what you can build 
from junk laying around in the desert. Old shotgun shells make nice coil 
forms and if you punch out the primer you have a handy way to screw them 
to your breadboard. There was a RadioShack/Sears/Music store in Ajo for a 
few 20th century components.