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Re: LF: RE: G7NKS on QRSS 137.7 and also disaster recvoery

from [John Rabson] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: RE: G7NKS on QRSS 137.7 and also disaster recvoery
From: John Rabson <[email protected]>
Date: Sun, 19 Sep 2010 17:56:12 +0200
In-reply-to: <012701cb5808$dec312a0$0217aac0@desktop>
References: <011f01cb5807$eda94560$0217aac0@desktop> <012701cb5808$dec312a0$0217aac0@desktop>
Reply-to: [email protected]
Sender: [email protected]
Jim,

What is the waveform of the current drawn from the PSU?  In my experience some designs of stabiliser don't like large fast variations in load.

73
John F5VLF

On 19 Sep 2010, at 16:42CEST, James Cowburn wrote:

It appears I spoke too soon!     Two more pa transistors and a cap all charred!   Sorry Chris!!
 
It seems the supposedly regulated PSU wasn’t and the excursion from 24v to 30v was too much
 
QRT on 137 then
 
Best 73s and see you on 500 wspr
 
Jim

=
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