Alt-BEAM Archive
Message #07102
To: beam beam@sgiblab.sgi.com
From: "Ben Hitchcock" beh01@uow.edu.au
Date: Wed, 27 Oct 1999 16:09:22 +0000
Subject: [alt-beam] Re: A few questions
----------
>From: "Steve M"
>To: alt-beam@egroups.com
>Subject: [alt-beam] A few questions
>Date: Wed, Oct 27, 1999, 2:19 AM
>
>Okay, I'm a newbie, so bear with me. I have a few unrelated questions that I
>thought some of you could help me with.
>1) I'm building a photovore, (using Chui's tutorial) and I was wondering,
>which lead is the wiper on a potentiometer block? There are three leads and
>by looking at the schematic it is pretty obvious to see where the middle
>lead connects, but are the other two inter-changeable?
Well, they are in your case. The only difference it will make is that you
have to twist the knob the other way, if you get it wrong. Sort of like
going anticlockwise to turn the volume up, if you know what I mean.
In your case, it really doesn't matter, so just stick it in the way that's
most convenient for you.
>2) Just what exactly does a Digital Multi-meter do?
Well, it's a multimeter that can measure voltage, resistance, and usually a
couple of other things like diode voltage, current, capacitance, etc.
The nice thing is that this type of multimeter is that it is digital - so
you don't have to get the leads around the right way to measure voltage, and
some digital multimeters have a touch-hold button so you can take a
measurement, hit the hold button, and then have a good look at the value you
have 'captured'. Most also can auto-range so that you don't have to know
what level of voltage you're measuring - you can measure .01 volts and 240
volts without changing a switch. Analog meters can't do this. They have a
readout much like the readout on a calculator or a digital watch. This
means that they are a bit slower than analog meters, and don't have quite as
much resolution, but the benefits far outweigh the disadvantages, IMHO.
I have two Digital multimeters (Fluke 83 and Fluke 12) and both work very
well. It was a big step up from my old analog meter!
Ben
7103 Wed, 27 Oct 1999 09:43:09 +0200 [alt-beam] Site and URL update. PLEASE READ. "'beam@sgiblab.sgi.com'" "Van Zoelen, Bram AA SSI-TSEA-352" Gents,
Personal reasons force me to make this change. My present website will be
down [and out] in not so long time. To be more precise, i will unplug my
site at 01-01-2000.
However, i have found a new location where all my files are stored so
nothing is lost. The new URL is already up and active. So please update your
bookmarks from
http://www.xs4all.nl/~vsim
to
http://vsim.freeservers.com
or
http://beam.to/vsim
My E-mail will change to from
vsim@xs4all.nl
to
vsim@mail.com or
beam@vsim.freeservers.com
whatever you like
Again, these change will not be active before Jan 2000! So don't panic.
Bram
7104 Wed, 27 Oct 1999 10:10:56 +0200 [alt-beam] Transistor database "'beam@sgiblab.sgi.com'" "Van Zoelen, Bram AA SSI-TSEA-352" Gents,
I recently found a DOS database program [which will run under W95 and NT]
that will show many transistor type, their pin layout, characteristics,
replacement types and field to use for.
I hope this is of any help
Look at my robotics page for TORBASE.EXE
http://vsim.freeservers.com
Bram van Zoelen
Robotics, kites, personal and more
http://vsim.freeservers.com
http:/beam.to/vsim
E-mail
vsim@mail.com
vsim@vsim.freeservers.com
7105 Wed, 27 Oct 1999 11:42:49 -0400 [alt-beam] Re: oscilloscopes beam@sgiblab.sgi.com "Sathe Dilip" I did a quick search on the net & found the following site which seems
to be a good introduction.
www.cs.tcd.ie/courses/baict/bac/jf/labs/scope/index.html
And for those who want to look at tutorials on various electronics
related topics:
http://www.iserv.net/~alexx/lib/tutorial.htm
Hope this helps.
Dilip
------------------------------------------------------------
Tai Heng wrote:
>
> This kinda is off topic (really off) but just
> wondering if anyone has any info for calibrating
> oscilloscopes and general information on how to use
> the things for a beginner who has no clue. Information
> about the types of probes would also be appreciated.
> Thanks.
>
> ICQ 2811980
> 6244592
>
> __________________________________________________
> Do You Yahoo!?
> Bid and sell for free at http://auctions.yahoo.com
--
Pl. remove *s from the e-mail address to reply
7106 Wed, 27 Oct 1999 14:33:47 -0400 My new site PLA Turd
>
> I finally made a web site. It's not the best one out
> there, but it's not bad. All the links are dead at
> the moment. I'm hoping to get about 75% of it up and
> running by the end of the weekend. Right now only
> about 10% is running. Just go and take a peek and
> tell me what you think. Get back to me with any
> comments you got.
>
> It's at
>
> www.geocities.com/mr_roboto101/
>
> Domo Arigato!!
>
> =====
>
> __________________________________________________
> Do You Yahoo!?
> Bid and sell for free at http://auctions.yahoo.com
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