WRL CPO-3 manual, reprint.

This is a digitally copied and enhanced manual for the WRL CPO-3 code practice oscillator.  It has been copied from an original and is clear, clean, and easy to read.  It is printed on premium 24# paper with heavy covers and bound with a plastic comb.  No more struggling with unreadable photocopies!

The CPO-3 manual is 8 1/2" X 11".  Topics covered include:  general description, mounting and wiring procedure, test procedure, operating procedure, parts list, chassis views, and schematic.