The Bell Ringers are a group of active and retired ham employees of the telephone industry, plus some ham friends with a mutual interest. They comprise a non-message network to meet regularly on the air to provide an exchange of communications and continuing fellowship within our area. To visit the Bell Ringers home page, click here
Thursday, January 31, 2008
Hand Made Tubes
Have you ever seen a triode vacuum tube made by hand? Visit this web page and scroll down to the 17 minute video of the process.
On a related theme, you might like the hand made cathode ray tubes shown here. A short video of one in operation is shown here.