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Search: Posts Made By: carlisle_bob
Forum: Automated Brewing Forum 10-20-2012, 02:02 PM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi If you stick with the DIP package parts...

Hi

If you stick with the DIP package parts PIC's (starting from the 18F series) have a lot of similarity in their pinouts. There are a couple of power pins that show up on the later parts that...
Forum: Automated Brewing Forum 10-18-2012, 05:00 PM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi The "cost is no object" approach would be...

Hi

The "cost is no object" approach would be to use multiple external PID's and select which one is active with the PIC. Sort of the 1960's approach. You could set each one to it's control point...
Forum: Automated Brewing Forum 10-17-2012, 01:03 AM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi Yes indeed, this is a bit picky. Feel...

Hi

Yes indeed, this is a bit picky. Feel free to ignore the input.

I'd set your boil point sensor to something like 208 F to start the timer. It's "close enough", and takes care of things like...
Forum: Automated Brewing Forum 10-14-2012, 01:32 PM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi Sounds good! Now you need to figure...

Hi

Sounds good!

Now you need to figure out what you are going to use for connectors. D-Sub's are popular, but you need strange cutouts for them. They also aren't great on current rating. CPC...
Forum: DIY Projects 09-20-2012, 10:39 PM
Replies: 223
Views: 70,585
Posted By carlisle_bob
Hi I realize that for some reason you have a...

Hi

I realize that for some reason you have a need to attack any post I make anywhere on the Forum, no matter what the topic. Why - who knows.

I've bought millions of thermistors and used them...
Forum: DIY Projects 09-19-2012, 11:43 AM
Replies: 223
Views: 70,585
Posted By carlisle_bob
Hi Oddly enough, I've actually been in the...

Hi

Oddly enough, I've actually been in the sort of places that "knock off" this sort of stuff. The way they do it is pretty simple. They all get a specific batch of parts from a single source....
Forum: DIY Projects 09-16-2012, 01:24 PM
Replies: 223
Views: 70,585
Posted By carlisle_bob
Hi The gotcha is figuring out *exactly*...

Hi

The gotcha is figuring out *exactly* which part is indeed the replacement. There are literally dozens of "OEM replacements" on eBay. Unless you get lucky, the beta is going to be wrong. Even...
Forum: DIY Projects 09-09-2012, 12:58 PM
Replies: 464
Views: 246,780
Posted By carlisle_bob
Hi That's what many power supplies do when...

Hi

That's what many power supplies do when they are running into to big a load. Either your blower is pulling more than 5 amps or the power supply is putting out less than it's rated for.

Bob
Forum: DIY Projects 09-05-2012, 01:18 AM
Replies: 223
Views: 70,585
Posted By carlisle_bob
Hi Last time we had this conversation, you...

Hi

Last time we had this conversation, you came on pretty strongly that "calibration is nonsense" ....

Some more of the story:

Beta is an exponent in the fit equation. A small change...
Forum: DIY Projects 09-02-2012, 09:31 PM
Replies: 64
Views: 14,063
Posted By carlisle_bob
Hi The dsPIC33's from Microchip are a pretty...

Hi

The dsPIC33's from Microchip are a pretty good intermediate between the Arduino's and full blown ARM. You are up to a 140 MHz clock, even at low voltage. That helps get stuff done. You also...
Forum: DIY Projects 09-02-2012, 07:15 PM
Replies: 223
Views: 70,585
Posted By carlisle_bob
Hi Ok, here goes again on the probes: ...

Hi

Ok, here goes again on the probes:

1) You need one that's 10K ohms nominal resistance at 25C. That's pretty easy, just be sure you don't get ones that are 10K at 20C.
2) You need one that's...
Forum: DIY Projects 08-05-2012, 12:27 PM
Replies: 43
Views: 5,690
Posted By carlisle_bob
Hi 23" without anything connected to them....

Hi

23" without anything connected to them. Figure another half inch to allow hoses to get in and out easily. There is some variation between manufacturers, so it's best to measure the actual kegs...
Forum: DIY Projects 07-28-2012, 03:57 PM
Replies: 10
Views: 1,403
Posted By carlisle_bob
Hi It's the normal floor standing burner...

Hi

It's the normal floor standing burner setup minus the legs that hold it up off the floor. Sorry - no picture.

Bob
Forum: Automated Brewing Forum 07-27-2012, 08:08 PM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi Setting up a gun for each gauge is the...

Hi

Setting up a gun for each gauge is the right way to go. That way you aren't fiddling with stuff all the time. It's a *lot* easier to see the "30 GA" marking sticker on a gun than that little...
Forum: DIY Projects 07-25-2012, 10:23 PM
Replies: 31
Views: 4,131
Posted By carlisle_bob
Hi You don't want to have a "buffer" of dead...

Hi

You don't want to have a "buffer" of dead air between the bottom of the pot and the burner. The burners run quite a bit of air, so you need some room for it to exhaust. Watch the air currents...
Forum: DIY Projects 07-25-2012, 12:28 AM
Replies: 515
Views: 223,431
Posted By carlisle_bob
Hi They zero them with the same little screw...

Hi

They zero them with the same little screw that everybody is using to switch them to higher temperature. Toss it in a cold bath and tweak the screw.

Bob
Forum: Automated Brewing Forum 07-23-2012, 04:26 PM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi The little crimp in the wire is actually...

Hi

The little crimp in the wire is actually a weld (if everything is working). It's a microscopic sized weld, but it is fused metal. Without it, you have the possibility of oxidation on the...
Forum: DIY Projects 07-22-2012, 07:56 PM
Replies: 10
Views: 1,403
Posted By carlisle_bob
Hi If shipping is the issue, there are...

Hi

If shipping is the issue, there are stores that will absorb the shipping costs if you pick it up at the store. I'd phone around and see what you can find. If there's nothing local to you, there...
Forum: Bottling/Kegging 07-22-2012, 03:39 PM
Replies: 3
Views: 274
Posted By carlisle_bob
Hi Not the wrong move. Any / all of these...

Hi

Not the wrong move. Any / all of these chemicals can leave residue. They also ignore certain things (hopefully they don't dissolve stainless steel or vinyl :D). The first time you use any...
Forum: Automated Brewing Forum 07-22-2012, 03:34 PM
Replies: 84
Views: 4,853
Posted By carlisle_bob
Hi On a really good wrap, you can feel the...

Hi

On a really good wrap, you can feel the welds breaking every 90 degrees as you un-wrap the wire. Admittedly it's a destructive test, but it's a good way to check things out.

Bob
Forum: Bottling/Kegging 07-21-2012, 10:54 PM
Replies: 18
Views: 1,982
Posted By carlisle_bob
Hi That's nonsense. Bob

Hi

That's nonsense.

Bob
Forum: Bottling/Kegging 07-21-2012, 10:53 PM
Replies: 3
Views: 274
Posted By carlisle_bob
Hi A lot depends on just what is in your...

Hi

A lot depends on just what is in your lines. The real risk is that it goes after something that the Oxy has left behind. If that stuff exhausts the cleaner ...

Being cheap ass, I'd mix up...
Forum: Bottling/Kegging 07-21-2012, 10:47 PM
Replies: 14
Views: 3,957
Posted By carlisle_bob
Hi One of the neat things about having your...

Hi

One of the neat things about having your own draft beer is that you can experiment with carbonation levels. You may find that you like some beers up around 18 psi (more carb) compared to 12...
Forum: Bottling/Kegging 07-21-2012, 10:37 PM
Replies: 10
Views: 769
Posted By carlisle_bob
Hi About three hours east of you bottles...

Hi

About three hours east of you bottles aren't all that hard to come by. Strange the way things work. Just tossed a few because they were piling up...

Bob
Forum: Bottling/Kegging 07-21-2012, 06:11 PM
Replies: 18
Views: 1,982
Posted By carlisle_bob
Hi The reason they pull current, but don't...

Hi

The reason they pull current, but don't heat up a lot is "power factor". A cheap fan motor is basically an inductive load. A pure inductance will draw current at AC, but produce no heat. That...
Showing results 1 to 25 of 500

 
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