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[AMPS] Tetrode Amp articles needed

To: <amps@contesting.com>
Subject: [AMPS] Tetrode Amp articles needed
From: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net)
Date: Fri, 6 Jun 1997 08:57:03 +0000
>       The answer to the initial power spike is a fixed ALC into the
> transceiver. Using a fixed voltage the time constant in the rig no longer
> determines the initial high power spike. 
>       Combining this fixed voltage with a DC voltage produced by the peak
> RF into the grid of the PA prevents the grid from going positive while
> protecting the amp from the initial spike on key down. This is particularly
> bad for low drive tubes like 3CX800's. such as in the Alpha 87
>                            73 de NO2T - Jerry

That's a good suggestion Jerry. In tests here, that has corrected the 
problem. Thank's for mentioning it. 
73, Tom W8JI 

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