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Software to calculate Ohms Law and other electronics math

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Mike Coon
Guest

Tue Jan 29, 2019 12:45 pm   



In article <be6268f7-290f-4e3d-8a2b-f0f73ec35747_at_googlegroups.com>,
whit3rd_at_gmail.com says...
Quote:

On Saturday, January 26, 2019 at 7:56:49 PM UTC-8, tub...@myshop.com wrote:
Is there any Software to calculate Ohms Law and other electronics math?

You would be better off with a piece of log/log graph paper, labeled for a
convenient range of V on one axis, and I on the other axis. Every
resistor value can be represented by a straight line (a diagonal)
on the graph. Scribe in 1 ohm, 10, 100, 1000, 10k etc. lines, and glance
at it when you want a value.

Calculators are slow. Laminated charts inform in a couple of seconds, and
can be taped on any convenient door/partition/refrigerator.


And there must be a PDF or XLS etc file that generates log/log charts
for printing out locally.

Which reminds me that decades ago I wrote a spreadsheet to display the
Fourier synthesis of a square wave from the first half-dozen harmonics.
Must have it somewhere...

Mike.

Jeff Liebermann
Guest

Tue Jan 29, 2019 8:45 pm   



On Tue, 29 Jan 2019 11:25:16 -0800, John Robertson <spam_at_flippers.com>
wrote:

Quote:
I have a small collection of those cardboard calculators that I got from
an electronics parts store I bought out:
https://www.flippers.com/images/props/Cardboard_Calculators-front.JPG
https://www.flippers.com/images/props/Cardboard_Calculators-rear.JPG
John :-#)#


I get "404 That page doesn't seem to exist... for both URL's.

--
Jeff Liebermann jeffl_at_cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Andy Burns
Guest

Tue Jan 29, 2019 8:45 pm   



John Robertson wrote:

Quote:
I have a small collection of those cardboard calculators that I got from
an electronics parts store I bought out:

https://www.flippers.com/images/props/Cardboard_Calculators-front.JPG
https://www.flippers.com/images/props/Cardboard_Calculators-rear.JPG


ITYM

<https://www.flippers.com/images/Props/Cardboard_Calculators-front.JPG>

and

<https://www.flippers.com/images/Props/Cardboard_Calculators-rear.JPG>

John Robertson
Guest

Tue Jan 29, 2019 8:45 pm   



On 2019/01/28 3:21 p.m., Jeff Liebermann wrote:
Quote:
On Sat, 26 Jan 2019 20:36:55 -0800, Jeff Liebermann <jeffl_at_cruzio.com
wrote:

I think you'll find one of these to be more suitable:
https://www.google.com/search?q=ohm's+law+cardboard+slide+rule&tbm=isch
Most of my collection:
http://www.learnbydestroying.com/jeffl/crud/Paper-Slide-Rule-Calculators.jpg
http://www.learnbydestroying.com/jeffl/crud/Paper-Slide-Rule-Calculators-02.jpg
Oddly, I don't seem to have one that does Ohm's Law.

This probably the best of the bunch:

"Ohmite Ohm's Law Calculator"
https://stevenjohnson.com/cardboard/images/ohmite-res-slide.gif
http://americanhistory.si.edu/collections/search/object/nmah_692574
I could swear I have one, somewhere, maybe. Wannit if I can find it?

Roll your own modern slide chart calculator:
https://www.datalizer.com


I have a small collection of those cardboard calculators that I got from
an electronics parts store I bought out:

https://www.flippers.com/images/props/Cardboard_Calculators-front.JPG

https://www.flippers.com/images/props/Cardboard_Calculators-rear.JPG

John :-#)#

--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

whit3rd
Guest

Tue Jan 29, 2019 10:45 pm   



On Tuesday, January 29, 2019 at 3:14:16 AM UTC-8, Mike Coon wrote:
Quote:
In article <be6268f7-290f-4e3d-8a2b-f0f73ec35747_at_googlegroups.com>,
whit3rd_at_gmail.com says...

On Saturday, January 26, 2019 at 7:56:49 PM UTC-8, tub...@myshop.com wrote:
Is there any Software to calculate Ohms Law and other electronics math?

You would be better off with a piece of log/log graph paper, labeled for a
convenient range of V on one axis, and I on the other axis. Every
resistor value can be represented by a straight line

And there must be a PDF or XLS etc file that generates log/log charts
for printing out locally.


Yep, that can work; or if you have a shared disk on the network,
a bookmark for file://the-shared-disk/utility/resistor-1to100V-1to100mA.pdf

John Robertson
Guest

Tue Jan 29, 2019 11:45 pm   



On 2019/01/29 11:40 a.m., Jeff Liebermann wrote:
Quote:
On Tue, 29 Jan 2019 11:25:16 -0800, John Robertson <spam_at_flippers.com
wrote:

I have a small collection of those cardboard calculators that I got from
an electronics parts store I bought out:
https://www.flippers.com/images/Props/Cardboard_Calculators-front.JPG
https://www.flippers.com/images/Props/Cardboard_Calculators-rear.JPG
John :-#)#

I get "404 That page doesn't seem to exist... for both URL's.


Andy caught my typo, used a lower case 'p' for the '/Props' directory.
I've fixed the above links...

I knew I should have tested them before posting!

John :-#(#

--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

John Robertson
Guest

Tue Jan 29, 2019 11:45 pm   



On 2019/01/29 11:25 a.m., John Robertson wrote:
Quote:
On 2019/01/28 3:21 p.m., Jeff Liebermann wrote:
On Sat, 26 Jan 2019 20:36:55 -0800, Jeff Liebermann <jeffl_at_cruzio.com
wrote:

I think you'll find one of these to be more suitable:
https://www.google.com/search?q=ohm's+law+cardboard+slide+rule&tbm=isch

Most of my collection:
http://www.learnbydestroying.com/jeffl/crud/Paper-Slide-Rule-Calculators.jpg

http://www.learnbydestroying.com/jeffl/crud/Paper-Slide-Rule-Calculators-02.jpg

Oddly, I don't seem to have one that does Ohm's Law.

This probably the best of the bunch:

"Ohmite Ohm's Law Calculator"
https://stevenjohnson.com/cardboard/images/ohmite-res-slide.gif
http://americanhistory.si.edu/collections/search/object/nmah_692574
I could swear I have one, somewhere, maybe.  Wannit if I can find it?

Roll your own modern slide chart calculator:
https://www.datalizer.com


I have a small collection of those cardboard calculators that I got from
an electronics parts store I bought out:

https://www.flippers.com/images/props/Cardboard_Calculators-front.JPG

https://www.flippers.com/images/props/Cardboard_Calculators-rear.JPG

John :-#)#


Typo, should be:

https://www.flippers.com/images/Props/Cardboard_Calculators-front.JPG

https://www.flippers.com/images/Props/Cardboard_Calculators-rear.JPG

John :-#(#

--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

Lucifer
Guest

Wed Jan 30, 2019 8:45 am   



On Sat, 26 Jan 2019 21:56:44 -0600, tubeguy_at_myshop.com wrote:

>Is there any Software to calculate Ohms Law and other electronics math?

Google.

Ohm's law; V
======
I x R

Mike Coon
Guest

Wed Jan 30, 2019 3:45 pm   



In article <f7i25ehl7fhi5jt0g4iqthg7im76ojjaj0_at_4ax.com>,
LuciferMorningstar_at_bigpond.com says...
Quote:

On Sat, 26 Jan 2019 21:56:44 -0600, tubeguy_at_myshop.com wrote:

Is there any Software to calculate Ohms Law and other electronics math?

Google.

Ohm's law; V
======
I x R


That's a law? With no "="?

Mike.

Stephen Wolstenholme
Guest

Wed Jan 30, 2019 4:45 pm   



On Wed, 30 Jan 2019 14:38:33 -0000, Mike Coon
<gravity_at_mjcoon.plus.com> wrote:

Quote:
In article <f7i25ehl7fhi5jt0g4iqthg7im76ojjaj0_at_4ax.com>,
LuciferMorningstar_at_bigpond.com says...

On Sat, 26 Jan 2019 21:56:44 -0600, tubeguy_at_myshop.com wrote:

Is there any Software to calculate Ohms Law and other electronics math?

Google.

Ohm's law; V
======
I x R

That's a law? With no "="?

Mike.


Is it an attempt to draw a triangle that represents V = I * R,
I = V/R, R = V/I

Steve

--
http://www.npsnn.com

Cursitor Doom
Guest

Wed Jan 30, 2019 9:45 pm   



On Wed, 30 Jan 2019 15:20:07 +0000, Stephen Wolstenholme wrote:

Quote:
On Wed, 30 Jan 2019 14:38:33 -0000, Mike Coon <gravity_at_mjcoon.plus.com
wrote:

In article <f7i25ehl7fhi5jt0g4iqthg7im76ojjaj0_at_4ax.com>,
LuciferMorningstar_at_bigpond.com says...

On Sat, 26 Jan 2019 21:56:44 -0600, tubeguy_at_myshop.com wrote:

Is there any Software to calculate Ohms Law and other electronics
math?

Google.

Ohm's law; V
======
I x R

That's a law? With no "="?

Mike.

Is it an attempt to draw a triangle that represents V = I * R,
I = V/R, R = V/I


You cover up the quantity you need to know and derive it from the other
two left.

Why anyone would need a computer for a baby grade problem like this I
simply can't imagine.



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This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.

Fox's Mercantile
Guest

Thu Jan 31, 2019 1:45 am   



On 1/30/19 2:35 PM, Cursitor Doom wrote:
Quote:
Why anyone would need a computer for a baby grade problem
like this I simply can't imagine.


Two reasons:
1. Tubeguy already said he can't do math.
2. His internet sucks so he needs a local program.

I can this stuff in my head, but that doesn't help him any.



--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com


Guest

Thu Jan 31, 2019 7:45 pm   



On Saturday, January 26, 2019 at 10:56:49 PM UTC-5, tub...@myshop.com wrote:
Quote:
I'd welcome a piece of software that would calculate simple ohms law
things like determining the resisitor size or amperage, etc.


Just buy a multimeter from a hardware store.

Cursitor Doom
Guest

Sat Feb 02, 2019 12:45 am   



On Wed, 30 Jan 2019 17:47:58 -0600, Fox's Mercantile wrote:

Quote:
On 1/30/19 2:35 PM, Cursitor Doom wrote:
Why anyone would need a computer for a baby grade problem like this I
simply can't imagine.

Two reasons:
1. Tubeguy already said he can't do math.


If he can't do the most elementary things like multiply and divide, then
there's no hope for him in electronics AFAICS. He needs to pick another
job.

> 2. His internet sucks so he needs a local program.

He could get a powerful pocket calculator for peanuts! I can't believe
anyone can be *that* stupid, TBH. He's having a laugh at your expense.





--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.

Terry Schwartz
Guest

Sat Feb 02, 2019 12:45 am   



No, read his posts, and those from his alter-ego, oldstuff....... He's *that* stupid.
Quote:

He could get a powerful pocket calculator for peanuts! I can't believe
anyone can be *that* stupid, TBH. He's having a laugh at your expense.


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