Just to cover all bases, the RAT receivers (46083 & 46084) were also 12v as was the 46181 ARA-2 190-520 KCs receiver. Best regards, Michael, WH7HG BL01xh http://www.nationalmssociety.org/chapters/NTH/index.aspx http://wh7hg.blogspot.com/ http://kludges-other-blog.blogspot.com Hiki Nô!