Old Calculators

[empip]

Slide rule somewhere about the house circa '64

1st calculator, Sinclair Cambridge mid 70's

Commodore P50 : 20 odd step programmable late '70's ( retained )

Texas TI-33. '80'ish ( retained )

Remaining in use :-

Texas TI-36X solar. mid 90's

Varous Casio
circa 2000
FX-115W

FX-9750G power graphic 32k. quite potent this 'un.

 

[tim west]

http://www.vintagecalculators.com/html/sinclair___the_pocket_calculat.html

Brings back memories, I still have the previous model of the sinclair tv(shown below) to the one pictured on that site.

 

[empip]

'Engineering functions' in Excel are useful.

For trainee Electrikery bods ... COMPLEX number stuff and also DEC2BIN etc, n'all