[AMRadio] EF Johnson Attenuator


Joe Crawford crawfish at surfmore.net
Thu May 1 17:38:48 EDT 2008


There is a ham who makes a more robust version of the Johnson Attenuator for 
$60. plus shipping.The Johnson will dissipate 30 to 35 watts.So I would 
imagine $50. and up(Johnson collectors would pay up) for it. Just my 
opinion.
                                    Joe W4AAB
----- Original Message ----- 
From: "Joe Dube" <jdube1 at bellsouth.net>
To: <amradio at mailman.qth.net>
Sent: Thursday, May 01, 2008 3:03 PM
Subject: [AMRadio] EF Johnson Attenuator


Does anyone on the list have any idea how much an EF Johnson Attenuator box 
is worth.   This is the device that is placed between the AM transmitter and 
the liner to drop the RF power from the transmitter to a value that a linear 
amp can use without overdriving the amp.  Any help with this will be 
appriciated as I can not seem to find any reference to this unit anywahere. 
Maybe I am just looking in the wrong place??

Joe K4TR
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