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Old 05-05-2011, 02:58 AM   #1381
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Thanks a lot! My 220v showed up today. I was really looking forward to using this with my lager brew this weekend.

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Old 05-05-2011, 03:24 AM   #1382
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Quote:
Originally Posted by cjever19 View Post
So it looks like these things have jumped up to at least $36 on eBay.

Is this still the best deal around for a controller?
I just bought mine Monday for $23.90 shipped ... http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

Several others have purchased from this supplier with good results, and I'm hoping for the same.
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Old 05-05-2011, 05:58 PM   #1383
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I just started a separate thread addressing the specific 220 vs 110 unit issue. Hopefully some kind electronics guru will be able to guide us to a decent solution.

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Old 05-05-2011, 07:13 PM   #1384
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Quote:
Originally Posted by ere109 View Post
I just started a separate thread addressing the specific 220 vs 110 unit issue. Hopefully some kind electronics guru will be able to guide us to a decent solution.
There is a simple solution - KNOW WTF YOU ARE BUYING!
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Old 05-05-2011, 10:03 PM   #1385
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Originally Posted by Mad_Milo View Post
There is a simple solution - KNOW WTF YOU ARE BUYING!
Pretty much.

Or just use a transformer, like here:

http://www.bestofferbuy.com/50W-110V...campaign=gbase


For the real DIY'er, you could try to wrap one yourself!
(note, don't try that)

In the end, you'll probably pay a good chunk of the cost of the unit to begin with just adapting 220V.
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Old 05-05-2011, 10:42 PM   #1386
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In the end, you'll probably pay a good chunk of the cost of the unit to begin with just adapting 220V.
I would agree with you kaiser, the guys making these would be buying the relays in the 10000s and therefore each relay would cost basically nothing with vendor discounts and the price break they are at, where as an individual would be paying much more for 2 relays, then you'll have to desolder/resolder the relays without accidentally shorting out any other tracks. In the end it would be less than $10 worth (as long as you had the soldering iron, desoldering gun/braid, etc.) but even then you arn't gauranteed to not mess it up and end up with a nice looking paper weight.
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Old 05-05-2011, 10:56 PM   #1387
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Quote:
Originally Posted by mattd2

I would agree with you kaiser, the guys making these would be buying the relays in the 10000s and therefore each relay would cost basically nothing with vendor discounts and the price break they are at, where as an individual would be paying much more for 2 relays, then you'll have to desolder/resolder the relays without accidentally shorting out any other tracks. In the end it would be less than $10 worth (as long as you had the soldering iron, desoldering gun/braid, etc.) but even then you arn't gauranteed to not mess it up and end up with a nice looking paper weight.
It would be hard to short out a track, they're all embedded in the pcb.

I agree though, it would be a rather difficult task for those unfamiliar with soldering and electronics.

However, for a small fee, I'd replace them for anyone interested :-D

I spend 8 hours a day troubleshooting and soldering under a microscope, soldering components that dont require a pair of needlenose tweezers to hold is a walk in the park.

Who knows? The relays might be available for free as "engineering samples"
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Old 05-05-2011, 11:26 PM   #1388
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Here is a look inside the 120 VAC temp controller







I do not have a 220V unit to compare. ere109, if you want to send me yours or come over with it, drop me a PM and I'll be happy to open it up and post some pictures.

I would hazard a guess that anyone who wants to change the 220 to 110 would have to change the transformer at a minimum.

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Old 05-06-2011, 12:13 AM   #1389
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I received mine from uni-mart on fleabay took about two weeks 24$. Its a 110v you dont need to specify the voltage he just figures it out based on your address.

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Old 05-06-2011, 12:43 AM   #1390
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Quote:
Originally Posted by Wayne1
Here is a look inside the 120 VAC temp controller

I do not have a 220V unit to compare. ere109, if you want to send me yours or come over with it, drop me a PM and I'll be happy to open it up and post some pictures.

I would hazard a guess that anyone who wants to change the 220 to 110 would have to change the transformer at a minimum.
Thanks! Those transformers are $2.62 each from futureelectronics.com

My guess is the 230vac model is using pn bv302s09015 for the transformer. If that is, indeed, the case, and the relays are the same, should be a direct replacement.

Specs for the 110 transformer:

Secondary voltage: 9+-10% vdc
secondary current: 167 mA
Max no load voltage: 9.7 vdc
Rate power: 1.5 va

The relays are from hongmei relay in china, finding info about them is more difficult.

Would someone with the 230vac model care to crack it open and post the numbers and letters from the top of the 2 black boxes located on the board?
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