It's time to restore the 11/45.

Jacob Ritorto jacob.ritorto at
Wed Feb 4 20:43:29 CST 2015

wow, good catch, Noel. I'll pass this on to NASA ;)

On Wed, Feb 4, 2015 at 7:56 PM, Noel Chiappa <jnc at>

>     > From: Jacob Ritorto
>     > My NASA EE buddy recommended working up an appropriate load from
>     > regular household lightbulbs. They won't light, naturally, but you
> can
>     > dial in your load by simply choosing certain wattages and doing the
> math.
> Err, both tungsten and carbon filament incandescents have very different
> resistance when hot (lit) and cold. To make it even more, they are of
> opposite
> sign: with tungsten, the resistance increases as it heats up (a nice
> stabilizing feedback), and with carbon, it goes the other way. So if you're
> not running enough current to light the bulb, you can't use the printed
> watt
> rating; you'll have to use an ohm-meter.
>         Noel

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