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Make Your Own Relays

Volume 9 of the Popular Mechanics DIY Encyclopedia (1955) has a section on how to fabricate your own A.C. relays.. Look at that guy making a relay with a hammer!

Available to borrow from Open Library’s Lending Library program!

Originally posted on Raj at the Internet Archive by raj.

Written by internetarchive

March 10, 2011 at 9:41 pm

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