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Re: [TenTec] power problem on 0mni six

To: tentec@contesting.com
Subject: Re: [TenTec] power problem on 0mni six
From: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Reply-to: geraldj@weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 14 Mar 2010 23:39:25 -0600
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
My guess is that the overcurrent trip is too sensitive and that the PA 
bias in the radio takes longer than ten minutes to discharge, so that 
immediate restart lets the PA transistors draw too much current while 
charging the filter capacitors in the radio.

73, Jerry, K0CQ

On 3/14/2010 10:48 PM, DAVID HELLER wrote:
> A slightly annoying problem has shown on my 0mni 6 + 961 PS.
> Rig works perfectly unless I turn off AC power and try to restart immediately 
> or within about 10 minutes:  The power supply goes into motorboat mode, 
> cycling about 5 Hz.. Makes no difference whether it's off by switch on rig or 
> PS - of course  the two switches are essentially series'd so shouldn't make 
> any difference.  If I leave power off a while it starts and runs quite 
> normally.    Any suggestions before I put the scope to work?  Dave K3TX
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