I need a three pin plug of the type that was on the Century 21 accessory crystal calibrator. Does anyone know of a source? (I will check with Tentec if I can't locate one elsewhere.) Steve, N4EY -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com