[AMRadio] EF Johnson Attenuator


K4TR k4tr at bellsouth.net
Thu May 1 18:24:40 EDT 2008


would you know who this guy is who makes the attenuators.  Thanks for the 
other ino.

Joe K4TR
----- Original Message ----- 
From: "Joe Crawford" <crawfish at surfmore.net>
To: "Discussion of AM Radio in the Amateur Service" 
<amradio at mailman.qth.net>
Sent: Thursday, May 01, 2008 5:38 PM
Subject: Re: [AMRadio] EF Johnson Attenuator


> 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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