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Old 05-28-2011, 03:26 PM   #1461
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Do you still have any of these transformers available?
I just ordered 5 transformers, i'm in Marlton, NJ so if you want one and can pick it up at my place (cash) to save the shipping
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Old 05-29-2011, 06:19 AM   #1462
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I just finished mine tonight. I went over to Wayne's house Thursday and he did a great job of swapping transformers. Then I went to Home Depot and picked up a fiberglass gang box, receptacle, plug and wiring plate. It was about $8 for everything. I used a Dremel to trim some away some of the housing to fit over the new transformer. I hope between Wayne's picture and mine people will get a good idea where to make cuts. I also had to trim a few spots in the gang box. I then used a piece of Romex wire to string it all together, plugged it in and tested it - everything works. All work probably took me three hours. I'm gonna brew my lager on Monday.
My only regrets are hooking the cool circuit up on top, and the struggle it took to get everything squeezed into a two-gang box. I think I would advice a three-gang box, and possibly steel for better safety.

imag0050.jpg   imag0051.jpg   imag0052.jpg   imag0053.jpg  
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Old 05-29-2011, 01:15 PM   #1463
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Just an FYI... I just calibrated one of those units, using a mason jar full of water and a lab thermometer. The unit was indicating +1.5C (too high), so I was fermenting too low.

M_C

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Old 05-31-2011, 04:57 AM   #1464
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I built mine tonight!

http://beer.hexkrak.com/2011/05/30/new-fermentation-chamber/

I was also concerned about the calibration, so I used the ice water method and it read about 1 degree Fahrenheit high for me. Turns out my probe thermometer is totally screwed up, I hope I didn't mash too high...

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Old 05-31-2011, 07:27 PM   #1465
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Mine was reading about a degree high, as well. Made the adjustment on F4. I also turned it down to .3 degrees for the variance.

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Old 06-01-2011, 05:24 PM   #1466
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I had been shipped the 220v version of this controller despite ordering the 110v version. Fortunately the ebay seller has also shipped me a 110v because of their mistake which I will build another controller unit with upon arrival. Meanwhile I had a 220v sitting around, so I got in touch with @Wayne1 about the transformer solution and he sent along one of the units he had (thanks man!) I was able to desolder the 220v transformer and re-solder the new one in very easily. Anyone with soldering experience should have no trouble with this.

No photos of the build at the moment, but my controller looks just like @Wayne1's photos above with the hole cut to accomodate the taller transformer. I went with the RadioShack 8"x6"x3" project box, and following the lead of others I also installed a power switch and heat/cool neon indicator lights. The controller, lights and switch are mounted to the "front" of the project box, while the outlets are on top, and cords (power and sensor) extend out the "back".

I'm going to test it out for a few days on my kegerator before moving it to my fermentation chamber. 12 hours in so far and holding steady at 2.2ºC (+/- .5ºC).

This was a fun and easy project to complete, and I look forward to building another one soon. I've got several friends who are into homebrewing that aren't as comfortable with electrical work, so I will likely build a few more for them as well.

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Old 06-02-2011, 03:20 PM   #1467
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FWIW, Bicky (now doing business as "mixtea", I guess) was the name of the person who responded to my inquiry about changing my accidental 220V order to a 110V order.

Hope it comes through. *crosses fingers*
Bicky (Mixtea) came through huge! Seven days from order to delivery and he swapped out a 110V for the 220V mistakenly ordered.

If I wasn't "working" from home today, I'd run out to Home Depot and wire this project up right now.
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Old 06-06-2011, 12:44 AM   #1468
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So, how is everyone cutting their grey junction boxes? Craft knife scoring took for ever and I made no progress. Like expected, the Dremel with cutoff wheel melted the case into goo.

I've going to need to buy a new box. But until then, I'll be hacking away on this one.

Do the black Radio Shack boxes cut easier?

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Old 06-06-2011, 03:38 AM   #1469
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I used the black radio shack box, and i used one of those vibrating multi-tools and it works great.

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Old 06-06-2011, 04:01 AM   #1470
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I used a black radio shack box and dremmel. You need to put it on the slow setting and go slow with it. If you do get some melting, a file does a nice job of cleaning things up.

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