Altomare @altomare@oldbytes.space · activity timestamp 3 weeks ago Some neat info about 70s hard drive contaminants.From the DEC RK05 disk drive maintenance manual (DEC-00-HRK05-C-D) #retrocomputing #dec Read more Read less alt ""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid ""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid Reply Boost Quote pending approval Like More actions Copy link Flag this post Block
alt ""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid ""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid
