Search found 385 matches

by Dave Dixon
Wed Sep 15, 2004 6:20 am
Forum: General Discussion
Topic: transistor pinout
Replies: 12
Views: 1607

Re: transistor pinout

NTE Datasheet<p>Hope this helps,
Dave
by Dave Dixon
Fri Sep 10, 2004 5:13 am
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

Ryan,
Did you receive those parts?????
Dave
by Dave Dixon
Wed Sep 08, 2004 6:56 am
Forum: General Discussion
Topic: Where can I buy thermopiles?
Replies: 3
Views: 769

Re: Where can I buy thermopiles?

I would try Omega. I didn't see a listing in their catalog index, but they do a wide range of
sensors. their engineering staff has been very helpful to me in the past. Their website is
Omega's web site here
Good luck,
Dave
by Dave Dixon
Tue Sep 07, 2004 9:36 am
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

Shipping today via Airborne.
You are very welcome!!
Dave
by Dave Dixon
Tue Sep 07, 2004 5:15 am
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

Whoops, My email has changed. It is...
ddixon at aeromach dot com
Dave
by Dave Dixon
Fri Sep 03, 2004 7:31 am
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

Ryan,
Do you want those two samples I have? I can drop them in the mail.
Dave
by Dave Dixon
Fri Sep 03, 2004 5:55 am
Forum: General Discussion
Topic: Repairing laptop computer power supplies
Replies: 6
Views: 1199

Re: Repairing laptop computer power supplies

Mr. K,
I would suggest buying new, cheap enclosures. Something like this...
Enclosure here
Only costs around $4.00 or so, and has screws for easy access the next time the wires break.
Hope this helps,
Dave
by Dave Dixon
Thu Sep 02, 2004 12:51 pm
Forum: General Discussion
Topic: Hints for a rookie writer?
Replies: 34
Views: 7695

Re: Hints for a rookie writer?

David, I'm embarassed that I didn't look at the "From" in the tag. Of course you are from the U.K. - it was right there for me to see. My apologies! I used to write technical procedures for our Quality Control Department. I would literally pass them off to our janitor, point him to the test equipmen...
by Dave Dixon
Thu Sep 02, 2004 10:36 am
Forum: General Discussion
Topic: Hints for a rookie writer?
Replies: 34
Views: 7695

Re: Hints for a rookie writer?

David,
My Webster's shows that the primary definition of "spelt" is split piece of wood, or
else a type of wheat. The secondary is British
past and past part of SPELL. Spelled is the preferred past of spell!
Sorry, I couldn't resist. All in good fun,
Dave
by Dave Dixon
Thu Aug 26, 2004 11:09 am
Forum: General Discussion
Topic: A watts question.
Replies: 6
Views: 1410

Re: A watts question.

I'm pretty confident of this answer, but expect more input from others here... Wattage is a unit of power. It can be determined by measuring Voltage and Current. Watts = Volts X Amps. Or measure Resistance and Current. Then Watts = (Amps squared) X Ohms. If you burn a one hundred Watt lightbulb for ...
by Dave Dixon
Thu Aug 26, 2004 10:29 am
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

In a precious post, I left the link to the datasheet for the LM34. I have ONE each LM34 and ONE each LM35 in the package I can mail you free. You can experiment with one (let the smoke out), and use the other tweaking for final design. I understand about the pressure/temp thing. I just didn't want a...
by Dave Dixon
Wed Aug 25, 2004 1:46 pm
Forum: General Discussion
Topic: 12 volts into 24 volts
Replies: 3
Views: 996

Re: 12 volts into 24 volts

Try here...
National Semi power semi.
Just poke in the values in the center column for
Vin min. / Vin max. / Vout and Current.
It'll lead you to a simple switcher circuit.
We use them in our aircraft instruments quite
often.
Good luck, hope this helps.
Dave
by Dave Dixon
Wed Aug 25, 2004 12:30 pm
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

I have an LM34 (Fahrenheit) and a LM35 (Centigrade) Precision Temp. Sensor from National. See the datasheet here... LM34 Datasheet It is simple to hook up for analog or digital apps. I guess you would have to offset the output, as you can't immerse it within the radiator fluid. I would expect a line...
by Dave Dixon
Wed Aug 25, 2004 12:18 pm
Forum: General Discussion
Topic: Temp guage for car
Replies: 28
Views: 5063

Re: Temp guage for car

Be careful trying the thermometer idea. The
system works by having the fluid under pressure
as a closed system. High temp = high pressure.
Dave
by Dave Dixon
Thu Aug 12, 2004 1:31 pm
Forum: General Discussion
Topic: Build to order (or swap)
Replies: 24
Views: 3863

Re: Build to order (or swap)

Aldi's grocery store in my town uses the same system. You put a quarter in a slot to get your shopping cart. If you bring it back you get your quarter back. Almost no one at the discount store - you bag your own groceries as well - parts with their quarter, leaving the cart out. Dave<p>[ August 12, ...