[Amps] Harbach SB-220 Soft Start Relay Part # or replacement

Mark Bitterlich markbitterlich at embarqmail.com
Sat Oct 5 12:14:17 EDT 2024


I'm curious how soft start is built into the HV transformer of a SB-220. Can you explain that please? De wa3jpy 
-------- Original message --------From: David Gow <6146guy at gmail.com> Date: 10/4/24  11:34 PM  (GMT-05:00) To: Alek Petkovic <vk6apk at bigpond.com> Cc: amps at contesting.com Subject: Re: [Amps] Harbach SB-220 Soft Start Relay Part # or replacement Pull it all out, as has been well documented there is no need for a softstart mod for th SB-220, it is built into the transformer. You are onlyprotecting the switch and an outlet strip will do that.On Fri, Oct 4, 2024 at 5:00 PM Alek Petkovic via Amps <amps at contesting.com>wrote:> Well done.>> 73, Alek VK6APK.>> On 5/10/2024 4:38 am, Larry Carpenter wrote:> > I think I have narrowed my Harbach Soft Start module failure to a> defective 48 vdc spdt relay. This in turn caused the failure of the ceramic> 10 watt 20 ohm resistors. Does anyone know who makes this relay or the> model number or a substitute that will fit on the Harbach board?> >>>                                                             Thanks,> >>>                                                             Larry Carpenter> > _______________________________________________> > Amps mailing list> > Amps at contesting.com> > http://lists.contesting.com/mailman/listinfo/amps>> _______________________________________________> Amps mailing list> Amps at contesting.com> http://lists.contesting.com/mailman/listinfo/amps>_______________________________________________Amps mailing listAmps at contesting.comhttp://lists.contesting.com/mailman/listinfo/amps


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