Subject:
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RE: Wot no RCX power connector?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 21 Oct 1999 01:23:25 GMT
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Viewed:
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461 times
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Doug Wrote:
> To: lugnet.robotics@lugnet.com
> Subject: Re: Wot no RCX power connector?
>
>
SNIP
> While I'm at it, another question for the group. If one wanted to add an
> adapter plug to the 1.5 RCX, would it be safe to wire it directly
> to either
> end of the existing battery terminals (with a cut-off switch to disconnect
> the batteries from the circuit), as long as one were careful about the
> milliamps rating on the AC adapter?
>
> --Doug Wilcox
SNIP
I was thinking about this last night. It would be very easy to build a
dummy battery, using a 7809 voltage regulator, diode bridge on the input,
and a shell to put it in.
My stumbling block last night was finding the right tube....does anyone
remember the "dummy" cells that you used with the old NiCads. One of those
would be perfect. Anyhow, the LS7809 fits easily within the width of a AA
cell, add the adaptor of choice, and drill a 0.187 hole thru one of the
studs on the bottom of the battery case (has anyone else noticed how well a
drilled hollow stud fits a 1 3/4 LED?) in the right location, and you're
done. If I had the right part for the tube, I'd have one done.
Jeff
jeffrey.hazen@northmill.net
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Message has 1 Reply:
 | | RE: Wot no RCX power connector?
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| (...) You could get a battery adaptor, that is, a device for putting AAA batteries where AA batteries should go. They're available easily here in the UK - Maplins for example. The only irritation I see is that you'll need 6 of them; 5 of which will (...) (25 years ago, 21-Oct-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Wot no RCX power connector?
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| I was wondering about the speaker as well. The old RCX definitely can beep, and make a whole host of other sounds. Not being an electronics engineer, I'm was uncertain of my ability to identify the speaker on the 1.0 board. It's not the thing that's (...) (25 years ago, 20-Oct-99, to lugnet.robotics)
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