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1. [Amps] Quadra step start (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Wed, 26 Apr 2017 08:53:01 -0700; I The main problem with the Quadra PS is its tendency to blow the step-start resistors (R2A, B, C) that limit the startup surge current. This is caused by two design errors, both of which can easily; /archives//html/Amps/2017-04/msg00300.html (9,896 bytes)
2. Re: [Amps] Quadra step start (score: 1): Author: "Ian White" <gm3sek@ifwtech.co.uk>; Date: Thu, 27 Apr 2017 09:33:56 +0100; VE7RF commented ? Sorry, I don't know. ones, even the metal finned arcol types should work. Metal cased resistors also have quite poor short-tem surge performance because heat conduction to the case; /archives//html/Amps/2017-04/msg00327.html (8,796 bytes)
3. Re: [Amps] Quadra step start (score: 1): Author: Victor Rosenthal 4X6GP <k2vco.vic@gmail.com>; Date: Thu, 27 Apr 2017 14:00:48 +0300; But if the step-start also controls the filament voltage it should be longer than 100 ms. I have always adjusted mine to be about 1s in order to give the filament time to heat up. I have no idea what; /archives//html/Amps/2017-04/msg00328.html (8,063 bytes)
4. [Amps] Quadra step start (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Thu, 27 Apr 2017 10:50:26 -0700; <But if the step-start also controls the filament voltage it should be <longer than 100 ms. I have always adjusted mine to be about 1s in order <to give the filament time to heat up. I have no idea w; /archives//html/Amps/2017-04/msg00337.html (11,314 bytes)

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