Who has a sinclair scientific programmable?

[EdS2]

(12-06-2024 01:06 PM)Steve Simpkin Wrote:  

(12-06-2024 09:08 AM)EdS2 Wrote:  Looks like Sinclair's Scientific Programmable was $80 in 1975. I would be surprised if you could buy any other scientific programmable quite so cheaply - and that was Sinclair's general tactic, to be cheap rather than very capable.

A table of introduction dates, prices by year, and number of steps might be very interesting.

While this is not quite what you asked for, the following article starting on page 29 of the May 1976 issue of Popular Electronics magazine is an interesting read.
HERE ARE THE NEW PROGRAMMABLE CALCULATORS!
https://www.worldradiohistory.com/Archiv...976-05.pdf

Excellent find! Article by Forrest Mims. Says there are 10 programmables on the market, and has a photo showing 9 of them. Distinguishes elementary, intermediate (conditional branching), and fully programmable (subroutines). In the elementary category we find
Litronix Model 2290 ($29.95) 10 steps, algebraic
Sinclair Scientific Programmable ($79.95) 24 steps, RPN, scientific
Novus Model 4515 ($79.95) 100 steps, RPN, scientific
Novus Model 4525 ($99.95) 100 steps, algebraic, business
Novus Model 6035 ($99.95) 100 steps, algebraic, statistical