Drake SPR-4 Instruction manual, reprint.

Cover

This is a digitally copied and enhanced manual for the Drake SPR-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 SPR-4 instruction manual is about 8 1/2" X 11" and consist of a total of about 65 pages with a large one piece
11" X 26"
foldout of the schematic.  Topics include general description, specifications, installation, operation, principles of operation, alignment, accessories, DC voltage chart, RF voltage chart, bottom chassis view, crystal chart, diagrams of many circuit board assemblies, and schematic.