Most common calculators in the forum?

[Accutron]

(12-31-2017 09:26 AM)EdS2 Wrote:  Sperry Remington 661D

I came across a Sperry-Remingdon 663 at a thrift store just a couple weeks ago. It's virtually identical to the 661-D, but moves the power switch from the front face to the side.

It's a bit hard to find, but if you like weird Casio Mini adaptations, I recommend the Root-8S.