[Elecraft] POW Radio - Thanks

Fred Jensen k6dgw at foothill.net
Mon Oct 17 18:26:31 EDT 2005


A big thanks to all who provided information and ideas on the "POW 
Radio" project.  FWIW, I learned a few things:

1.  The razor blade radio was actually called the "Foxhole Radio."  One 
response explained that the "POW Radio" was really a 1-tube regen (that 
may be the next class project if I can work up a circuit).

2.  Gillette Blue Blades are still available, although not everywhere 
(or in most places)

3.  Any metal will do, preferably a little corroded.  There is nothing 
special about the "blue" razor blade.

4.  The pencil point-on-rusty metal "diode" isn't exactly a real diode 
and the radio doesn't work very well.  I remember this as a kid when I 
and my geek friends made a few of them.

Pacificon yielded a little crystal set kit that we're calling "Prototype 
#1".  We're going to use a 1N34A and do a little tap dance around the 
razor blade issue in the introduction.  The kids are organized in the 
class into 7 groups, so current plan is to have each group build their 
own radio.  Troy (the teacher) says the kids are really excited about 
the project.  Stay tuned, I'll probably stick a web page out somewhere 
with the results and some pictures.

73, and thanks again,

Fred K6DGW
Auburn CA CM98lw



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