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28v to 14v

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JOHN TIPTON

Joined: 17 Sep 2006
Posts: 239
Location: Torquay - England

Posted: Fri Jan 15, 2010 1:26 pm Post subject: 28v to 14v

Hi



Is there a simple way of operating a 28v Nav/Com radio from 14v (RV) airplane



John

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stein(at)steinair.com
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Posted: Fri Jan 15, 2010 2:07 pm Post subject: 28v to 14v

You could use a 14V to 28V step-up converter...but they are kind of pricey

(hundreds of $$'s).  It's what we do with almost every G900X installation in

14V airplanes (as their Comm is 28V to transmit at 16W).



Cheers, Stein

--

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Eric M. Jones

Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts

Posted: Sat Jan 16, 2010 3:53 pm Post subject: Re: 28v to 14v

Try Astrodyne for great low cost power supplies that will do what you want.

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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net

greg(at)itmack.com
Guest

Posted: Sat Jan 30, 2010 2:37 pm Post subject: 28v to 14v

John,  you could try one of these.  I've bought a couple for non aviation 

use.  The download manual has the circuit diagram and full specs.  Can't 

break the bank.



http://cgi.ebay.com.au/12V-to-24V-Step-up-Power-Converter-Module-DC-to-DC_W0QQitemZ180461820730QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2a045cdb3a



 	  Quote: 	
		   

 <jmtipton(at)btopenworld.com>



 Hi



 Is there a simple way of operating a 28v Nav/Com radio from 14v (RV) 

 airplane



 John





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p 81697#281697

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Eric M. Jones

Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts

Posted: Sun Jan 31, 2010 5:48 am Post subject: Re: 28v to 14v

Depending on the details, you could be in more or less trouble. I still recommend Astrodyne. The Ebay (and God I love it) supply is unlikely to have the power required nor the noise specs.

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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net

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