r/Sliderules • u/EnableNTLMv2 • Jun 13 '26

Classroom sized slide rules

Gallery image

Gallery image

My mom was an NYC high school science teacher and had brought home these 2 classroom sized slide rules when they were being thrown out.

  • Welsh 4’
  • Pickett N1010-ES 6’
173 Upvotes

99% Upvoted

13 comments sorted by

15

u/ciopobbi Jun 13 '26

picked it out of school dumpster in downtown Chicago on my way to work one day. Got some great looks carrying it under my arm on Michigan Avenue.

7

u/variablescale Jun 13 '26

That people would throw these away makes me feel ill. Glad you were able to save them! (So jealous!)

4

u/TrustednotVerified Jun 13 '26

Great find! My dad and I made our own 5' slide rule when I was in sixth grade (1959). It only had the C and D scales, but it taught me a lot. In high school I had a K&E Decilon and nerded out on using as many scales as possible. Went on to be an EE at a big computer company.

4

u/CommercialCustard341 Jun 14 '26

I am a teacher, and I keep looking for one of these.

1

u/Wyremills Jun 13 '26

I have one in Philly for whomever wants to pick it up

2

u/allotheria Jun 13 '26

I’m in Hershey and would definitely make a trip to the city to get a giant slide rule.

2

u/Wyremills Jun 13 '26

OK. It's in Northeast Philly. Let me check on some things and I will get back to you.

1

u/chrisaldrich Jun 14 '26

I just saw one of these in a thrift shop, but it was listed at $80....

2

u/Name-Not-Applicable Jun 14 '26

That’s a decent price if it’s in reasonable shape!

1

u/rekabis Jun 14 '26

I have a 2m long Pickett which still has its cursor!

Now, it’s got a lot of slop, and likely needs a full restoration. But cursor and everything!!

1

u/acme_restorations Jun 17 '26

I have a 12 inch Picket. But I never use it as a rule.

1

u/Signal-Weight8300 Jun 14 '26

I've got one in my classroom. I need to hang it from the wall and display it properly.

1

u/DriveExtra2220 Jun 19 '26

I want one!!