Radio Preppers

General Category => General Discussion => Topic started by: gil on July 01, 2017, 04:39:37 AM

Title: Book: Modern Practice of The Electric Telegraph.
Post by: gil on July 01, 2017, 04:39:37 AM
Excellent online resource on making batteries and the wired telegraph.

http://www.insulators.info/books/mpet/ (http://www.insulators.info/books/mpet/)

Gil.