Hammarlund HC-10 manual, reprint.

This is a digitally copied and enhanced manual for the Hammarlund HK 1B Keyer.  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 manual for the HK 1B measures 8 1/2" X 11".  Topics include: introduction, modes of operation, adjustment, theory of operation, service, connection diagrams, resistance and capacity chart, parts list, and schematic.