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Topband: Matching Transformer

To: <topband@contesting.com>
Subject: Topband: Matching Transformer
From: "AD5VJ Bob" <rtnmi@sbcglobal.net>
Date: Thu, 25 Dec 2008 17:51:19 -0600
List-post: <topband@contesting.com">mailto:topband@contesting.com>
OK Lets first say Merry Christmas and Happy New Year.

Now, I just made a 9:1 transformer from a donut ferrite (I am pretty sure it is 
Amidon 43 if I remember what he said) that another
Ham sent me (I think off this list) a while back. 

Anyway, I made it from an article that I downloaded from a link one of you guys 
sent me. So thanks very much for all the responses
and the information all of you have shared with me and it looks just like the 
article so hoping it will work.

It really wasn't too hard to make although I had to hunt for the super glue and 
my hands started to cramp after a little while (but
guess you get used to that and it wears off after a while).

Now I go to a link on ebay 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150316387834

and saw where a guy is selling in the UK a BALUN which he says it 9:1 for 
beverages, long wires, ect and it doesn't look a thing
like mine I just built. Now keep in mind mine is a matching transformer and he 
is calling his a BALUN.

Guess I am not understanding the difference of why one would use a 9:1 BALUN vs 
a matching transformer. Since his looks completely
different than mine a transformer and BALUN must not be the same thing.



   73 fer nw es gud DX,
QSL VIA: LotW, BUR, e-QSL
Bob AD5VJ
http://www.ad5vj.com/
Old Calls WB5ZQU, WY5L/KH3, KE5CTY, N5IET


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