Telegraph Relays
Posted: Thu Dec 15, 2022 7:42 pm
Some stuff on telegraph relays, in particular restoring and bringing into excellent operating condition
a 20-Ohm Pony relay dating from the late 19th century :
http://ki3u.byethost3.com/Radio-Physics ... ntext.html
Berj / KI3U
a 20-Ohm Pony relay dating from the late 19th century :
http://ki3u.byethost3.com/Radio-Physics ... ntext.html
Berj / KI3U