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@gmail.com>
Date: 10/4/24 11:34 PM (GMT-05:00)
To: Alek Petkovic <vk6apk@bigpond.com>
Cc: amps@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 soft
start mod for th SB-220, it is built into the transformer. You are only
protecting the switch and an outlet strip will do that.
On Fri, Oct 4, 2024 at 5:00 PM Alek Petkovic via Amps
<amps@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
> > _______________________________________________
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> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
>
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