Reporting back...

The multiple emitters worked beautifully.  I used 4 in all, and they=20
worked great, so I separated them by a couple feet and I saw no change=20
or degradation in performance.  The receivers picked up the signal from=20
the next booth's table too.

Much thanks,
-Neil.




On 10/18/2016 1:20 AM, Neil wrote:
> I will be powering this from a 6V wall-wart with a 5V, 500mA switching
> converter.  I have a bunch of 9V wall warts laying around, but that's
> not much better.
>
> Yes series is easier, but I don't have much overhead voltage to work
> with.  Other than just needing more resistors, is there a benefit to
> series for this usage?
>
> Cheers,
> -Neil.
>
>
> On 10/18/2016 12:28 AM, Harold Hallikainen wrote:
>> Neil,
>>
>> If you have enough voltage, it's easier to put the LEDs in series which
>> puts the same current through each.
>>
>> The emitter is shown at
>> http://www.uslinc.com/index.php?page=3Dshop.product_details&flypage=3Dfl=
ypage.tpl&product_id=3D44&category_id=3D21&option=3Dcom_virtuemart&Itemid=
=3D106
>> . It carries hearing impaired audio, visually impaired audio, and closed
>> captions in movie theaters.
>>
>> Harold
>>
>>
>>

--=20
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