Just do a Google search on "Bendix IF 9 Frequency Indicator" and you will find it immediately. First entry is a Bendix catalog, you want page 21 (of 27) in the PDF, or page 19 according to the table of contents in the Bendix book. Lots of other interesting stuff there too - Jim, KL7CC I can forward the PDF (about 12 MB) to anyone needing it. Elden