Old Calculators

[tim west]

Can anyone remember using the addimult mechanical calculator? it had addition on one side and subtraction on t'other.
Wish i'd kept mine.

 

[megawatt]

Was no good at calculus though

 

[tim west]

I'm sure it could if you could spend the time with it

 

[Shutpa]

Never came across this but had a look at it just now via Google. Looks quite modern in design - when was it in circulation?

 

[tim west]

we used them in school around 60's they could be earlier though?

 

[Thermo]

i can remember them in the 70s. i can also remember the first electronic one with the display that was done in lights (sort of) rather than lcd

 

[tim west]

i can remember them in the 70s. i can also remember the first electronic one with the display that was done in lights (sort of) rather than lcd

LEDS what you're looking for?

 

[bernardgreen]

 

[tim west]

nixies!

 

[Thermo]

thats the thingies! buit i remember the handheld version of them though

 

[Shutpa]

More than thirty years ago I had a pupil who carried an abacus around with him and was allowed to 'play' with it in most classes every day for his entire secondary school career. I think he might have enjoyed the addimult more had it been available in our school. He went on to become a motor mechanic but how he managed the theory, I havn't a clue.

 

[tim west]

thats the thingies! buit i remember the handheld version of them though

still got it? could be worth a tidy sum

 

[tim west]

More than thirty years ago I had a pupil who carried an abacus around with him and was allowed to 'play' with it in most classes every day for his entire secondary school career. I think he might have enjoyed the addimult more had it been available in our school. He went on to become a motor mechanic but how he managed the theory, I havn't a clue.

Cant remember how i got mine, it may have been a government initiative in schools at the time? I remember us all getting one,perhaps mum had to pay for it?

 

[JohnD]

I still use my Electronic Digital Binary Calculator.

 

[Spark123]

These things with the & segment LED displays?