Search found 76 matches
- Thu Jan 18, 2007 7:05 pm
- Forum: General Discussion
- Topic: Monitoring Water Current direction and speed
- Replies: 19
- Views: 15829
This one is simple and cheap, Hobo has data loggers with external inputs (0 to 5 volts) with time stamps, for flow direction use house magnetic alarm switches (reed switches) and a magnetic on the direction vane, every 30 minutes the unit wakes up and checks temp, direction and speed. Hobo http://ww...
- Tue Jan 16, 2007 8:27 pm
- Forum: General Discussion
- Topic: Current Indicator Circuit Breaker
- Replies: 14
- Views: 6912
I use a load bank to test 100k generators and the machine has three analog meters on the front panel that are connected to current sensing rings that are fitted over the three input wires. This might be a little harder to install but I haven't seen anything like what your looking for. Something like...
- Sat Nov 25, 2006 8:32 am
- Forum: General Discussion
- Topic: Car Battery Questions
- Replies: 20
- Views: 12048
- Fri Nov 24, 2006 5:56 pm
- Forum: General Discussion
- Topic: Car Battery Questions
- Replies: 20
- Views: 12048
- Tue Sep 19, 2006 8:22 pm
- Forum: General Discussion
- Topic: I'm bored :-)
- Replies: 17
- Views: 8077
Smoke_Maker wrote: Engineer1138 2AM What in the world would anybody need spares parts for a 2am, go to bed. I think that will get your RealTechie (tm) status revoked. To me it's a sign to total focus and passion to be working on a project and realize it's 2AM. I wear that badge with pride. OUCH :ee...
- Mon Sep 18, 2006 5:14 pm
- Forum: General Discussion
- Topic: I'm bored :-)
- Replies: 17
- Views: 8077
- Sun Sep 17, 2006 6:48 pm
- Forum: General Discussion
- Topic: I'm bored :-)
- Replies: 17
- Views: 8077
- Mon Sep 11, 2006 7:07 pm
- Forum: General Discussion
- Topic: NiMH batteries
- Replies: 7
- Views: 3735
- Mon Sep 11, 2006 5:04 pm
- Forum: General Discussion
- Topic: NiMH batteries
- Replies: 7
- Views: 3735
That is a very lofty goal to build your own Flooded NiCad. Finding the material to make the plates will be hard to say the least, making all the plates the same so they play well together will be even harder, but I think you should go for it. I have no clue how to do this, but I think I would start ...
- Sun Sep 10, 2006 12:57 pm
- Forum: General Discussion
- Topic: we just GOTTA come up with a design challenge..
- Replies: 9
- Views: 6920
Here is a project I would like to build, a electronic roulette wheel. I belong to a dinner club and the 15 or so of us have had a hard time deciding where to go the following week for dinner. I was thinking of a box with 20 LED's each with a switches to bypass the LED's that are not in use or was la...
- Sat Sep 09, 2006 5:54 pm
- Forum: General Discussion
- Topic: we just GOTTA come up with a design challenge..
- Replies: 9
- Views: 6920
There is a bunch of toys I would like to have on my work bench. 1. One power supply on my bench with all the different voltage outputs, regulated, isolated, and three outputs of each voltage 2. Circuit efficiency meter, how much energy is my design wasting, watts in watts out. 3. Battery cycler for ...
- Mon Sep 04, 2006 4:10 pm
- Forum: General Discussion
- Topic: ANOTHER electric car -- BUT ......
- Replies: 24
- Views: 11528
How about a E85 Hybrid vehicle. E85 sure would put a dent in our crude oil usage, but until we cut the amount of energy we use were still in trouble, I don't think there is enough acreage to put a big dent in it with the way we use fuel (or should that be the way we waste fuel). Here is what other p...
- Mon Sep 04, 2006 3:08 pm
- Forum: General Discussion
- Topic: ANOTHER electric car -- BUT ......
- Replies: 24
- Views: 11528
What helped in the demise of the electric car in the early 1900's was energy density, in today's batteries and gasoline it takes about 600 pounds of lead acid batteries to equal one gallon of gasoline. The numbers weren't that good back in the early days but with the invention of the radiator and th...
- Sun Sep 03, 2006 1:26 pm
- Forum: General Discussion
- Topic: ANOTHER electric car -- BUT ......
- Replies: 24
- Views: 11528
jollyrgr, You are right about E85 and biofuels but your grade school teacher is also right, we are running out of fuel. For me, it's not about the here and now but it's about the future of my great, great, great, great, great, great, great grandkids. I wonder what they will be using for fuel? Hydrog...
- Wed Aug 23, 2006 6:06 pm
- Forum: General Discussion
- Topic: Lead Acid Batteries: When to charge?
- Replies: 24
- Views: 11430