Hallicrafters HA-1 manual, reprint.

This is a digitally copied and enhanced manual for the Hallicrafters HA-1  keyer.  It  is clear, clean, and easy to read.  It is printed on premium 24# paper with heavy covers and stapled in the fold just like the original.  No more struggling with unreadable photocopies!

The HA-1 manual is about 8" X 11" and consists of about 12 pages plus a large one piece 11" X 17" fold out schematic.  Topics include general, specifications, installation, function of operating controls, operation, theory of operation, service data, and parts list.