relays, invented by Joseph Henry
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=93065
Printed Date: October 30, 2025 at 10:25 PM
Topic: relays, invented by Joseph Henry
Posted By: dswift
Subject: relays, invented by Joseph Henry
Date Posted: April 17, 2007 at 6:31 PM
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?
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"dont ground out!"
Replies:
Posted By: jmelton86
Date Posted: April 17, 2007 at 6:37 PM
To use a low powered signal to turn-on a high powered device. The same reason they are used today.
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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: KPierson
Date Posted: April 18, 2007 at 8:37 AM
How else would you remote start a horse and buggy?
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Kevin Pierson
Posted By: kassdog
Date Posted: April 18, 2007 at 1:38 PM
KPierson wrote:
How else would you remote start a horse and buggy?
lol
Posted By: hotwaterwizard
Date Posted: April 20, 2007 at 2:06 AM
Are you Sure? I think Morse adapted his coil principle and made the first working relay. https://www.privateline.com/TelephoneHistory/History1A.htm https://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 !
Posted By: butcha
Date Posted: May 17, 2007 at 5:56 PM
it was used to power up the cotton machine....
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MY FRIENDS CALL ME BUTCHER I FEAR NO WIRES THAT DONT BELONG.......................
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