Of course I understand that. But I got the impression from the original
post that he thought there was some reason to apply plate/screen
voltages to the tube slowly.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 02/10/2023 17:46, jim.thom jim.thom@telus.net wrote:
Date: Mon, 2 Oct 2023 16:42:10 +0300
From: Victor Rosenthal 4X6GP <k2vco.vic@gmail.com>
To: amps@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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