Drake R-4 manual , reprint.

This is a digitally copied and enhanced manual for the Drake R-4 receiver.  It  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 R-4 manual is about 8 1/2" X 11" and consists of about 38 pages plus a large one piece 11" X 17" fold out schematic.  Topics include: general description, installation instructions, control functions, operation, theory of operation, service data, alignment instructions, crystal frequency chart, voltage chart, and resistance chart.