Pickett & Eckel Model No. 500
Ortho-Phase Log Log
(1950)
slide rule
slide rule
Click to view 300 dpi image.
ManufacturerPickett & Eckel
Model500
Serial No.03C0552
Scale length25 cm
Overall length30.8 cm
Width3.8 cm
Body/Slide materialsMagnesium, 4.0 mm
Post materialsStamped aluminum
Cursor materialsMachined aluminum (extended) / Plastic (plain, flat)
ScalesLL0 LL00 A [B T:T ST S:S] D K
L LL1 DF [CF CIF CI C] D LL3 LL2
AccessoriesFelt case
NotesWhite numbers on black circle used on CI scale. LL1 scale is labeled LLI on left.
Identical to PE-500-25 except this has mask numbers.
Tag No.PE-500-5
[Back]