Electronics Gadgets and GPS Navigation

Can I use a rechargeable 9-volt battery in an old vintage LED calculator?

Jan 29, 2009 by Poyzin | Posted in Other - Electronics

I have a 33 year old TI-30 calculator that works perfectly, but it takes a 9 volt battery. I want to save money on batteries and use 9 volt rechargeable 175mAh 8.4-volt nickel metal hydride to be exact.

The owner's manual clearly says to use only non-rechargeable alkaline batteries, but it was 33 years ago and I suppose that the batteries are different, especially rechargeable batteries.
Can I use or not?

Yes you can. I had a TI30 I used on a rechargeable 9v fine.

Where would you go in Hong Kong to buy vintage watches and calculators??

Jun 25, 2006 by Buddha Mike | Posted in Other - Asia Pacific

I am interested in LED watches and calculators, and I was wondering which areas or markets is more suited for that. Does anyone have an idea? One million thank you in advance.

Calculators??

You can buy from street vendors in HK is cheap is really amazing. I bought one for 12 - digit calculators Casio at U.S. $ 1.50. and it works.

The Original Odhner (Vintage Calculator)

A indication of The Original Odhner - a mechanical calculator widely used in the early twentieth century. Here we use the basic operations of ...

vintage calculators web museum: the accountant's happy place on ...

by lambert v.

If you dream of a hook that collect old calculators is not as attractive as a blend of old robot toys and you're well above high-mindedness. A calculator is helpful - hell, even an abacus is more convenient to an android toy - but it is also one of the most exhausting gadgets ever. It calculates. End of story fish.But if you are subject or geek enough, or if you are looking for something to call about your blog and you're afraid that your boss does not undergo algolagnic, loading much video as YouTube, which is something rare and wonderful then the Vintage Calculators Web Museum is an amazing way to more current things. And after watching a pair of tot-Crunchers Until you are more grateful to the engineers and programmers who have worked accident to demonstrate and repair the gadgets we take for granted today. Take Corvus Coincide Chieftain as a standard.

As its name suggests, was CHECKMASTER cons for equalizing controls. The computer itself is embedded in the trunk bending, just right for storing a checkbook. The CHECKMASTER can aggregate the final result or weight even after it is turned off, quite unusual for a calculator which was built in the near future and the early to mid seventies. Also unique, but in a bad way, is the news that CHECKMASTER can take and add something to harm, and yet it required 6 AAA batteries. 6!The role of storage, all things considered sapped most of the extract.

But not all the calculators that tired old look - or as dark - as CHECKMASTER, some are even posted geek like calculator watches. Calculators wrist, the other to disseminate, geeky are decent. Calculators wrist eccentric geek up to 11 x 10. Wearing one is a shot that you're too smart for your own workable.One of these make eyes look at the Quik-Confirm is not only a boost around the magnet, is also a dumbbell in your wrist, because he needed a freakin ' 9 volt battery to cover....

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