I would like to hear from anyone who is using "The Tetrode Boards" sold by Down East Microwave Inc. These boards are used in tetrode RF amplifiers. 73 Pete N4KW -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm