View Single Post
  #2   Report Post  
Old August 14th 05, 12:14 AM
Walter Maxwell
 
Posts: n/a
Default

On Sat, 13 Aug 2005 18:00:21 -0400, "Fred W4JLE"
wrote:

You might be an old time if you can answer the following, with out diving
into your library.

Which of the following is NOT a rectifier?
a. 3B24
b. 80
c. 3C24
d. 6H6

Steel wool was once touted as a good material to make which of the
following?

a. Choke Balun
b. AF shielding
c. Linear capacitors
d. Radials for short virticals

Feel free to add your own favorite...


Good ones, Fred, 3B24 and 3C24 are not rectifiers.

However, some moron claimed in QST that steel wool was just as good as
ferrite for making choke baluns, but I've forgotten who the lunkhead
at the League was who believed him, and allowed stupid idea to be
published.

I complained to the League editors, who unbelieveably said 'Prove It'.
So I bought some steel wool and made two back to back baluns with it
and made measurements of common mode currents. The measurements proved
that the steel wool had absolutely no choking effect.

I reported the results of the measurements to the editors at the
League, but I can't remember whether they did anything about refuting
the original incorrect material. Perhaps your memory is better than
mine on this issue.

Walt, W2DU