[Milsurplus] Quieting A DC/DC Converter

[Peter Gottlieb]

I looked up the part number and apparently it’s a relay. Not sure why they need a relay there. From the ad it seems to be 50 Hz. 


Peter

> On Jan 21, 2018, at 1:38 AM, Jim Whartenby <antqradio at sbcglobal.net> wrote:
> 
> Two questions on this item:
> What is the black cube between the input and output connectors?
> At what frequency is this driver board operating?
> 
> I think that a lot of the mass produced control transformers have welded E&I cores and may have efficiency trouble at frequencies much higher then line frequency.  Then there is the need for a 24 volt center tapped winding.
> Jim
> 
> 
> From: David Stinson <arc5 at ix.netcom.com>
> To: 'Milsurplus' <milsurplus at mailman.qth.net>; ARC-5 <arc5 at mailman.qth.net> 
> Sent: Saturday, January 20, 2018 4:51 PM
> Subject: Re: [Milsurplus] Quieting A DC/DC Converter
> 
> I can't wait to get one of these "Inverter Driver" boards.  Several suppliers at varying prices, but all cheap.
> https://www.ebay.com/p/1374526604
> 300W capacity.  Get a center-tapped transformer, drive it with one of these and away you go.  We got some cool toys these days.
> 
> 
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