[HomeBrew] Plate Choke

[jeremy-ca]

100 uh is a bare minimum for 160 tube finals; the B&W 802 is 110uh and has 
no ham band reasonances.  In days of old when knights were bold top band 
chokes were often 1 to 2.5 mh in pie stacks but they had hot spots on higher 
bands. The National R-175 (hot spot on 15M) and R-175A (15M pblm fixed) were 
popular multiband chokes also.

Old (real old) QST's and Handbooks had several 160M TX articles.

Carl
KM1H


----- Original Message ----- 
From: "Rick Brashear" <rickbras at airmail.net>
To: "'Homebrew List'" <homebrew at mailman.qth.net>
Sent: Sunday, May 13, 2007 8:38 PM
Subject: [HomeBrew] Plate Choke


** Please do NOT cross-post messages when posting to HOMEBREW **

Generally speaking, am I correct in calculating a plate choke for a 160
meter transmitter should be somewhere in the 5 - 6 mh range and about 10Ω in
resistance?  I am going through a box of chokes looking for one to use and I
want to be sure my old mind isn't playing tricks on me.

What so ya'll think?  ...about the choke, not my mind...

Rick/K5IZ

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