Search found 23 matches

by natcsparky
Mon Jun 16, 2003 10:17 am
Forum: General Discussion
Topic: BIOMATION (Gould) K105-D Analyzer Pods
Replies: 2
Views: 675

Re: BIOMATION (Gould) K105-D Analyzer Pods

Al,<p>The one I have (and need) is the DSUB connector version. Your're right the schematic may be helpful. You can contact me (or I can call you off line) . <p>[email protected]<p>Thanks again!
by natcsparky
Fri Jun 13, 2003 7:54 am
Forum: General Discussion
Topic: Battery running times
Replies: 4
Views: 1198

Re: Battery running times

Another consideration is the cycle life of lead acid batteries (or most Lead acid, deep cycle, VRLA rechargable batteries). When "using" 100 % of the capacity of the battery, the long term cycle life will be affected negatively. In tests here, we saw 50 % reduction in cycle life (useable number of t...
by natcsparky
Thu Jun 12, 2003 3:43 pm
Forum: General Discussion
Topic: Strain Gauges
Replies: 6
Views: 1439

Re: Strain Gauges

Did you ever get the help you needed. Email if so.<p>Rick Capps
[email protected]
by natcsparky
Thu Jun 12, 2003 3:38 pm
Forum: General Discussion
Topic: BIOMATION (Gould) K105-D Analyzer Pods
Replies: 2
Views: 675

BIOMATION (Gould) K105-D Analyzer Pods

I'm looking for any information (schematics , parts etc.) for the pods for the BIOMATION K105-D analyzer. Any help would be appreciated. :confused:
by natcsparky
Fri Feb 14, 2003 5:21 pm
Forum: General Discussion
Topic: Where to buy DS1620
Replies: 2
Views: 906

Re: Where to buy DS1620

Call 'em up and ask for a sample. Maxim is pretty liberal with their stuff trying to get the sales up!
by natcsparky
Thu Feb 13, 2003 11:29 am
Forum: General Discussion
Topic: 12 V Lead Acid Charger
Replies: 5
Views: 1003

Re: 12 V Lead Acid Charger

I agree with Chris. If the power outlet on the car is used for charging only, then you could use a smaller (less wattage) higher resistance (like the 10 Chris suggests, albeit at a lesser wattage). The data logger draw in this state is the unknown which must be accounted for. The following is based ...
by natcsparky
Thu Feb 13, 2003 11:17 am
Forum: General Discussion
Topic: Closed Caption Encoder
Replies: 3
Views: 893

Re: Closed Caption Encoder

I'm sorry, the link I gave you goes to the Bob2 which is not reccomended for new designs. It has a link to Bob3. The Bob2 may be cheaper though!
by natcsparky
Thu Feb 13, 2003 11:16 am
Forum: General Discussion
Topic: Closed Caption Encoder
Replies: 3
Views: 893

Re: Closed Caption Encoder

Hi,<p>This article talks about the BOB2 which seems to do what you want. <p> http://www.jameco.com/Jameco/images/cc-images/baptiste-112.pdf The address for just the BOB2 is: www.decadenet.com/bob2/bob2.html <p>Hopefully this works out for you. By the way, this is a closed caption encoder, the previo...
by natcsparky
Thu Feb 13, 2003 10:52 am
Forum: General Discussion
Topic: Creating a high impedence probe
Replies: 6
Views: 1350

Re: Creating a high impedence probe

Also, consider that your parrallel port will be extremely slow (real time) in comparison to logic analyzers which have local memory then transfer results in non-realtime. I have played with the parrallel port with a pentium class (mmx 200) and was able to handle about 100KHz aggregate (meaning that ...
by natcsparky
Tue Feb 11, 2003 4:53 pm
Forum: General Discussion
Topic: timer circuit
Replies: 2
Views: 622

Re: timer circuit

Hi, <p>I would suggest that you check out some circuit diagrams available at the local radio shack in a series by Forrest Mimms call engineers notebook. They have one called timer / OPAMP circuits (I believe). In there you will see several circuits using a 555 timer IC to do just what you describe. ...
by natcsparky
Mon Feb 10, 2003 1:05 pm
Forum: General Discussion
Topic: Electric Vehicles
Replies: 36
Views: 6411

Re: Electric Vehicles

Harold,<p>UCAPS come in two varieties (right now), acqueous and non-acqueous. The acqueous capacitors are safe from a hazardous material point of view. They use a pottasium based electrolyte and some lead. The non-acqueous based capacitors use something called StarLyte ACN which is based on Ethaneni...
by natcsparky
Mon Feb 10, 2003 11:16 am
Forum: General Discussion
Topic: Electric Vehicles
Replies: 36
Views: 6411

Re: Electric Vehicles

No Problem Harold,<p>The Super or Ultra Capacitors are having an impact and will probably help with dynamics on EV and hybrid powertrains within a few years. Right now the costs are too high, and there are problems with some of the UCAPS emitting cyanide when overcharged, not something I want to be ...
by natcsparky
Mon Feb 10, 2003 11:12 am
Forum: General Discussion
Topic: Reliable No-Parts PIC Programmer
Replies: 10
Views: 1834

Re: Reliable No-Parts PIC Programmer

Agreed that motorola processors have some benefits, but I work with both and prefer the PIC, primarily due to the RISC architecture (a blessing and a curse) and a breadth of product ranges and I/O. A "real" processor like the 08 is useful for my larger integrated designs (like data logging, display ...
by natcsparky
Mon Feb 10, 2003 10:58 am
Forum: General Discussion
Topic: Electric Vehicles
Replies: 36
Views: 6411

Re: Electric Vehicles

Harold,<p>The main problem is that impurities can cause premature failure of internal parts. I do not pretend to be an expert on this, but at a conference recently, the issue of impurities injested by the fuel cell showed that in some cases, material commonly found in the air can cause oxidation in ...
by natcsparky
Fri Feb 07, 2003 5:53 pm
Forum: General Discussion
Topic: Silent Radio
Replies: 0
Views: 480

Silent Radio

I'm looking for technical data on some of the moving LED displays that Silent Radio manufactured before they went out of business. Anybody seen anything such as schematics, interface requirements, message protocol?<p>Thanks in advance :confused: