Pickett & Eckel Model 500-T
Ortho-Phase Log Log
(1959)
slide rule
slide rule
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ManufacturerPickett & Eckel
Model500-T
Serial No.
Scale length25 cm
Overall length30.8 cm
Width3.8 cm
Body/Slide materialsAluminum, 2.5 mm
Post materialsStamped aluminum (straight cutout)
Cursor materialsNylon (extended) / Plastic (groved, flat)
ScalesLL0 LL00 A [B ST {T:T S:S} C] D K
L LL1 DF [CF CIF CI C] D LL3 LL2
AccessoriesBlack leather case w/ plastic insert, excelent condition.
NotesEarliest N500's still have LL0 and LL00 scales. Range values on LLn scales.
Tag No.PE-500-3
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