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relays, invented by Joseph Henry


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dswift 
Copper - Posts: 396
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Joined: March 12, 2007
Location: United States
Posted: April 17, 2007 at 6:31 PM / IP Logged  
Did you know that the Relay was invented in 1835 by a guy names Joseph Henry. Isn't that just nuts? wth they need to use relay back in the day for?
"dont ground out!"
jmelton86 
Gold - Posts: 1,228
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Joined: February 07, 2007
Location: South Carolina, United States
Posted: April 17, 2007 at 6:37 PM / IP Logged  
To use a low powered signal to turn-on a high powered device. The same reason they are used today.
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
KPierson 
Platinum - Posts: 3,527
Platinum spaceThis member consistently provides reliable informationspace
Joined: April 14, 2005
Location: Ohio, United States
Posted: April 18, 2007 at 8:37 AM / IP Logged  
How else would you remote start a horse and buggy?
Kevin Pierson
kassdog 
Copper - Posts: 257
Copper spacespace
Joined: March 09, 2007
Location: United States
Posted: April 18, 2007 at 1:38 PM / IP Logged  

KPierson wrote:
How else would you remote start a horse and buggy?

lol

hotwaterwizard 
Silver - Posts: 1,350
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Joined: December 11, 2003
Location: California, United States
Posted: April 20, 2007 at 2:06 AM / IP Logged  

Are you Sure?

I think Morse adapted his coil principle and made the first working relay.

http://www.privateline.com/TelephoneHistory/History1A.htm

http://www.electronicsweekly.com/Articles/1999/04/14/11137/Honey+I+shrunk+the+relay.htm

John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
butcha 
Member - Posts: 31
Member spacespace
Joined: February 26, 2007
Location: United States
Posted: May 17, 2007 at 5:56 PM / IP Logged  
it was used to power up the cotton machine....
my friends call me butcher i fear no wires that dont belong.......................

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