[Kenwood] TS-520S AVC problem

[rbethman]

On 12/28/2013 9:54 PM, Richard Knoppow wrote:
>
> ----- Original Message ----- From: "Richard Knoppow" 
> <1oldlens1 at ix.netcom.com>
> To: "Clif Holland" <avvidclif at wildblue.net>; "Kenwood mailing list" 
> <kenwood at mailman.qth.net>
> Sent: Saturday, December 28, 2013 11:07 AM
> Subject: Re: [Kenwood] TS-520S AVC problem
>
>     Well, I don't know what to make of this. After leaving it run all 
> day while I was off running errands it works fine. I tested using 
> Cliff's idea of tuning past the calibrator. The response is clearly 
> the slow response. Well, I will heat cycle it a few times and see. I 
> don't like things that cure themselves.
>
>
> -- 
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
Richard,  I'm with you.  Things that cure themselves will re-awaken the 
disease at some later time.

It may well be that a board edge connection is cruddy, or a connection 
that plugs to a board.  I once had the TS-900 that was a predecessor to 
the 520 series.

IIRC, the FETs/JFETs used in both of those, (and transistors), are in 
sockets.  So there is more chance for bad connections, especially after 
they sit on the shelf.

Bob - N0DGN