[Amps] step start
jim.thom jim.thom@telus.net
jim.thom at telus.net
Mon Oct 2 10:46:58 EDT 2023
Date: Mon, 2 Oct 2023 16:42:10 +0300
From: Victor Rosenthal 4X6GP <k2vco.vic at gmail.com>
To: amps at contesting.com
Subject: Re: [Amps] step start
<Why do you want a soft start on either plate or screen voltage? What
<function does it serve?
<73,
<Victor, 4X6GP
<Rehovot, Israel
<formerly K2VCO
Switch on a B+ supply with a 93uf filter cap, with no step start, and you
will find out quickly
why step start is typ used.
What's the DC resistance of the 1 H choke ? You will want a HD bleeder on
the screen supply at all times. If sized correctly, the combo of the HD
screen xfmr, choke, 200 uf cap + bleeder should provide ample screen
regulation for SSB use. The dynamic regulation should be ample for both
your proposed B+ and screen supply.
Jim VE7RF
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