The winning article for the January 2017 QST Cover Plaque award is “A Small, Lightweight Switch-Mode Power Supply” by Ralph J. Crumrine, N0KC. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the February issue today.