[Amps] RF Choke in Titan 425 Burned

[Jim W7RY]

I use the RF parts choke in my 3CX800  (160-10) amplifier. BUT I have a .01 
Mfd cap at the base of the choke. Very important for keeping RF out of the 
power supply.

Not sure if the RF parts choke will fit inside of the Titan though...

73

Jim W7RY

----- Original Message ----- 
From: "Rich Hallman - N7TR" <rich at n7tr.com>
To: <Amps at contesting.com>
Sent: Saturday, July 11, 2009 6:50 PM
Subject: [Amps] RF Choke in Titan 425 Burned


>I was on for IARU contest and noticed the tuning on the amp didn't seem
> right....needed more drive to get to 1500 watts then the other 3 425's I
> have.  Plus it seemed to run much more hotter than my other ones as
> well.
>
>
>
> When I was on 15 meters I started to notice a smell.  Shut the amp down
> and pulled the cover off.  I noticed on the tube end of the RFC it was
> pretty well burned up.  I also noticed bubbles on the coating of the
> coil.
>
>
>
> This is the Last series 425 made (Golden Series) and not sure if there
> is something I should look at first before I replace the RFC?
> Also...Should the RF Parts RFC-3 work ok as a replacement?
>
>
>
> I haven't run this amp very much, so not sure if it had this issue in
> the past or not.   My other 425's I run all the time and run very cool
> and around 40-50 watts for full legal power.
>
>
>
> Thanks...
>
>
>
> Rich N7TR
>
> ex KI3V, N3AMK, WB3JOV
>
> www.n7tr.com <http://www.n7tr.com>
>
> Telnet: dxc.n7tr.com N7TR DXCluster
>
>
>
> _______________________________________________
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> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>


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