[Milsurplus] Marine use of airborne radios

[Gene Smar]

US telco central offices also use positive-ground 48 VDC supplies to reduce corrosion in equipment cabinetry.  Galvanic currents in this arrangement bring electrons INTO the steel, reducing oxidation (loss of electrons from the steel, a/k/a rusting.)  Less corrosion in the cabinets means low-resistance ground connections are maintained longer, etc., etc.

 

 

73 de

Gene Smar  AD3F

 

From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of James Whartenby
Sent: Monday, November 27, 2017 2:26 AM
To: 'milsurplus' <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] Marine use of airborne radios

 

Dave

With cars and the like, positive ground, less corrosion, negative ground less spark plug noise, or so it seems.  This is a reply to a similar question answered by someone from Lucas Ltd. in 1966.

http://www.rrec-northeast.co.uk/positive_negative.pdf  

 

On your workbench, it needs more clutter!  I found a stout dinning room table at Habit for not much money.  It is about 4 by 7 feet and will support anything I can put on it.  It has been painted too many times but I didn't buy it for it's beauty!

Jim

 

  _____  

From: David Stinson <arc5 at ix.netcom.com <mailto:arc5 at ix.netcom.com> >
To: 'milsurplus' <milsurplus at mailman.qth.net <mailto:milsurplus at mailman.qth.net> > 
Sent: Sunday, November 26, 2017 10:55 PM
Subject: Re: [Milsurplus] Marine use of airborne radios

 

So why, with the exception of microwave backbone, did people 

finally surrender to what The Almighty obviously intended

and make Negative Ground nearly universal?

 

73 Dave S.

 

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