Complete Manual and large format schematic

Key Words: Heathkit, Oscilloscope, Model, #, IO-4555, , Manuals, Complete, Manual, and, large, format, schematic

Pages and pages of detail. Classic heathkit manual set for the assembly and operation of the Model IO-4555 Heathkit single trace oscilloscope.

See our other auctions for the actual oscilloscope and other retro goodies














  • Classic Heathkit manuals
  • Operaton Guide
  • Assembly Guide
  • Illustration Booklet
  • Parts guide
  • Large format schematic
  • Actual built oscilloscope is available (see our other auctions)