Jim, Can you send me a wiring diagram for the ssr? Do you wire in just ONE SIDE of the pole? This might be why I blew my pid. Here is the ssr I have: ssr: ...
I'm not sure what you mean, one side of the pole. I have added a file, KettleControl.bmp to the group files for you to look at. When testing I filled my kettle...
... Jim, I was reading the manual the other day, and came across the same schematic. I will wire it just like that, even though it dosent make sense. I looked...
We have a few other yahoo groups. From time to time we like to list them all in case you might be interested joining any of the others. These are groups run by...
In my quest to make healthier, abundant yeast starters, I decided to make a stir plate after reading various forum threads. This is certainly not the first,...
I just finished making one too.. I built a variable voltage controller based on the LM317 chip instead of a rheostat, but basically the same otherwise.....
... controller based on the LM317 chip instead of a rheostat, but basically the same otherwise.. also, for a magnet on the fan hub, I just used an extra stir...
http://en.wikipedia.org/wiki/LM317 There are many schematics for the lm317 online.. some include diodes in case you short terminals, but you shouldn't need...
Funny, I had been spending the past few days doing just this, trying to get the circuit working. Unfortunately, either I did something wrong, or the diagram I...
For the variable voltage regulator circuit, you can just use the basic circuit printed on the back of the LM317 purchased at radioshack. If you got the LM317...
are the stir bars magnetic? can you make your own stir bar by coating a steel bar or bar magnet with plastigrip? probably not worth it unless you are...
... parts list and diagram as well. Though it does look like yours is a lot ... Thanks Matt, I've already changed a couple things, like the spacers and power...
interesting, I would have instinctively said to switch the positive supply... must be from my electrical experience of switching the hot wire. At first I...
stir bars are rare earth magnets coated in hdpe. lower grades of stainless are attracted to magnets, the more nickel is in the alloy the less magnetic it is. ...
... supply... must be from my electrical experience of switching the hot wire. ... lower voltage wallwart. But I think I understand your reasoning now.. I...
... I think the problem he is having is not using the LM371 pulse width modulation circuit. To drive motors at variable speed it is usually necessary to pulse...
It does need to be adjustable. Depending on the liquid level in the vessel you are stirring, the speed you stir needs to be faster at higher levels to optain...
Alright, my update to my stir plate: I had my EE friend come over, give the circuit that I had built a once over, he saw no problems with it, thinking and...
I had posted a question similar to this a while ago, when trying to figure out how to keep a small box that would fit a couple of carboys cool in my garage for...
If you have 12 volts at about 12-20 amps, you can add several Peltier coolers to a VERY well insulated box like I did for my INDOOR fermenter-chiller that...
OK... it took me awhile to get around to reading this, but I'd like to add a few numbers to this game. I'm figuring absolute worst case for this setup... but...
Wow. Alright, let's plug in the real numbers taken from sketchup. The one picture in the album did have the dimensions, but you're right, it was an after...
... That makes me feel a little better, and I *think* a couple of 30WÂ peltiers should be able to do the job. (My Peltier is about 50W as I got it from...
... Well, I guess I was WAY off on my estimation of the size of this object, which is a good thing. The average power dissipation of 35W is a lot more...
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