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Author Topic: My Scratch Pad  (Read 98539 times)

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Offline MadScientist267

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Re: My Scratch Pad
« Reply #150 on: April 16, 2015, 06:55:46 pm »
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Offline MadScientist267

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Re: My Scratch Pad
« Reply #151 on: April 16, 2015, 08:06:39 pm »
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Offline MadScientist267

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Re: My Scratch Pad
« Reply #152 on: April 17, 2015, 07:22:44 am »
An "all else equal" plot showing the charging algo in action

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Offline tomw

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Re: My Scratch Pad
« Reply #153 on: April 17, 2015, 07:33:06 am »
Quote from: MadScientist267 on April 16, 2015, 06:55:46 pm
(Attachment Link)

I had a house with a cathedral ceiling long ago and we used a similar down blower arrangement.

The Ex sewed a long tube that hung from a fan at the peak that was switched from the first floor. Actually one on each gable end. Lots less hardware compared to a metal duct / etc. As long as it blows into the tube it stays inflated and directs the air down.

It worked pretty nice jamming the heat back to the floor
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Offline MadScientist267

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Re: My Scratch Pad
« Reply #154 on: April 17, 2015, 11:50:31 am »
Tom -

Definitely. It makes all the difference in the world... Catches any weeping coming in around the door and forces it to mix in before it has a chance to form a layer that is damn near impossible to get rid of once formed. The final implement will be slightly different, and facing the other way, but there's no way I'd consider buttoning this thing up without including it in some form or another. ;)
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Re: My Scratch Pad
« Reply #155 on: April 17, 2015, 11:53:34 am »
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Sanity check on aisle 5...

I don't think 100K is gonna cut it in terms of getting a strong enough drive out, but regardless, if the 3 resistors on the left are all the same value, the PNP should get driven into cutoff when there's juice at the LED side of the opto, yes?
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Offline MadScientist267

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Re: My Scratch Pad
« Reply #156 on: April 17, 2015, 02:09:10 pm »
Ok so no go on that... needed 2 more components. But it's sorted.

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Re: My Scratch Pad
« Reply #157 on: April 18, 2015, 10:18:17 pm »
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Re: My Scratch Pad
« Reply #158 on: April 20, 2015, 09:17:34 pm »
"I hear ya"

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Re: My Scratch Pad
« Reply #159 on: April 25, 2015, 10:39:05 am »
Everything going according to plan... frozen solid baseline, check :P

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Offline MadScientist267

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Re: My Scratch Pad
« Reply #160 on: April 28, 2015, 03:19:34 pm »
"How To Carve A Circuit Board: The Circular [Saw] Files"

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Offline DaveW

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Re: My Scratch Pad
« Reply #161 on: April 28, 2015, 04:25:53 pm »
     Steve - What, you couldn't just buy the right value resistor the first time?
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Offline MadScientist267

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Re: My Scratch Pad
« Reply #162 on: April 28, 2015, 08:02:22 pm »
LOL Dave ;D

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Re: My Scratch Pad
« Reply #163 on: April 30, 2015, 03:28:14 pm »
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Re: My Scratch Pad
« Reply #164 on: May 02, 2015, 03:15:49 am »
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