A string of cheap Christmas lights. Per bulb voltage should be low enough i=
n
a long string. Cut it up and you don't need separate sockets.

~ Bob Ammerman
RAm Systems

> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
> Of Jason White
> Sent: Friday, September 18, 2015 2:27 PM
> To: Microcontroller discussion list - Public. <piclist@mit.edu>
> Subject: Re: [EE] Education for tommorrow
>=20
> (I did my Eagle Scout project two years ago teaching robotics to
High/Middle
> Schoolers)
>=20
> Digikey has a section for incandescent and neon bulbs.
>=20
> 1.4V rated 5mm Incandescent Bulb. $0.46 each at quantity of 25. (If
possible
> have extras for when the loose them or break the leads) Digikey part 289-
> 1230-ND (
> http://www.digikey.com/product-detail/en/1728/289-1230-ND/1552785 )
>=20
> Bonus: Same form factor as standard 5mm LEDs. I'd think you can safely us=
e
> these with standard 1.5V cells.
> Con: still costs $11 bucks for 25 bulbs plus ~$5 shipping (US)
>=20
>=20
> On Fri, Sep 18, 2015 at 2:00 PM, Denny Esterline <desterline@gmail.com>
> wrote:
> > So, I have opportunity to reach about two dozen cub scouts about 6-9
> > years old. I'm looking to start them with very basic electricity
> > (battery, bulb,
> > wire) and move them on to some more advanced stuff.
> >
> > There's a vague thought in the back of my mind about documenting the
> > process and turning it into something publishable (blog post,
> > hardcover book or something in between, TBD)
> >
> > So, I'm soliciting suggestions for two things, projects and sources.
> >
> > I'm thinking start with a pair of penlight cells and an incandescent
bulb.
> > I do think as a beginning a bulb is better than an LED for a few
> > reasons, but moving to LEDs should follow fairly quickly.
> >
> > Trouble is, I was immediately stymied by the cost of incandescent bulbs=
..
> > Over $5 US each at the local hardware store had me running for the door=
..
> > Even Ebay seems to be around $1/bulb. (I plan to explore Christmas
> > bulbs this weekend) So, clearly, sourcing things for what is
> > essentially a throw away can be quite painful.
> >
> >
> > So.. Thoughts?
> >
> > -Denny
> > --
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>=20
>=20
>=20
> --
> Jason White
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist

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