[Amps] Air variable pitting - repairable?

[Bob Maser]

Why not just order a replacement C2 from TT?
Bob W6TR
----- Original Message ----- 
From: "Jeff Maass" <jmaass at k8nd.com>
To: <amps at contesting.com>
Sent: Saturday, July 19, 2008 4:59 PM
Subject: [Amps] Air variable pitting - repairable?


>
> We have a TenTec Titan III at PJ2T which is currently unusable because of 
> serious arcing
> on 20 meters. It is so bad that the amp will only run 300 watts.
>
> The problem is clearly in the loading capacitor, an air variable. There is 
> an area on one
> of the rotor plates that is burned and broiled so badly that it has 
> fattened up the rotor
> and it is nearly coming into contact with the stator at the spot where 20 
> tunes up best.
>
> Can this be fixed by sanding it down (and perhaps coating the plates with 
> something) or is
> this always going to be a "weak spot" on the capacitor that will start to 
> arc again?
>
> 73,  Jeff  K8ND
>
>
>
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