Re: TI-H: Back to backlighting!

Subject: Re: TI-H: Back to backlighting!
From: Steve Benson <steve@adverspace.com>
Date: Wed, 27 Nov 1996 20:56:37 -0500 (EST)
In-Reply-To: <329CC2B8.38C4@cybernet.dk>

> 
> Alan Bailey wrote:
> > On a side note,
> > Could you do this backwards and run the calculator out of a wall socket?
> > :)  That would really save on batteries :)
> 
> Of course it would be possible to run the calculator from a wall outlet.
> All you need is an adaptor that supplies 6v DC. Then connect it to the
> calculator(take the batteries out first) instead of the batteries. It's
> strange that TI didn't place a small socket next to the link port so the
> calculator could use an external power supply.
> 
> Tobias Rathje
> 

There are regular DC transformers made like the ones many small appliances
use to convert AC to DC (the little black boxes on the plug) that have
several switches on the front that can be made to produce a variety of
voltages at either polarity. Isuppose it would be possible to just touch
wires from a plug on the transformer to the outermost battery leads on the
calc. but as for the switch settings, I know the TI uses 6VDC, but what should the
polarity be set to? I don't know a whole lot about electronics; I fried
a 2400 baud modem by setting that wrong once :).

steve@adverspace.com

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