is the 937 power supply made by ten tec or is it a import with their name on it? is it s linear or switching supply? thanks! -- Mike Bryce WB8VGE SunLight Energy Systems "Electricity at the speed of light" -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com