Hi Mike,<P>Conar was the house brand of National Radio Institute, a correspondence school which is no longer in business. They included various test equipment with their correspondence courses, as construction projects. And they sold the same equipment for general use.<P>BAMA ( <A HREF="http://bama.sbc.edu" TARGET=_blank>http://bama.sbc.edu</A> ) has manuals for some of the Conar equipment, but not for the 230.<P>------------------<BR>73 de Leigh W3NLB | | Leigh@AtwaterKent.Info<BR><A HREF="http://www.AtwaterKent.info" TARGET=_blank>http://www.AtwaterKent.info</A> | | <A HREF="http://www.Synchrophase.info" TARGET=_blank>http://www.Synchrophase.info</A>

Mike,<P>You can buy an operating manual from A. G. Tannenbaum (www.agtannenbaum.com).<P>I have a July/August, 1964 edition of the "NRI Journal," the bimonthly publication of NRI. The 230 is introduced in this issue. The article describes various applications of the unit and includes a schematic. If you'd like I can try to scan and email it to you.<P>------------------<BR>Vinton Roush<BR>Fairfield, OH

Mike,<P> I have the manual you are looking for, I'll scan it and send you the file this evening.<P>------------------<BR>Jim

I will add a word of thanks to him also!<BR>Malcolm<P>------------------<BR>