February 2015

Homebrewing Vacuum Tubes

Submitted by ai2n on Mon, 02/16/2015 - 11:26

Before the transistor ushered in the era of "solid state", there was "hollow state".  Vacuum tubes have been with us for over 100 years and are still used for high-powered  radio frequency amplifiers from VLF to microwaves, in medical imaging, and in niche applications for music production and playback. Many hams still build homebrew projects utilizing vacuum tubes.  Imagine, however, the challange of homebrewing your own TUBES from scratch!  Join us for a video presentation of a ham doing just that.

Meeting Date