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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Software to calculate Ohms Law and other electronics math
Is there any Software to calculate Ohms Law and other electronics math?
I have never been good at Mathematics, once you put numbers over other numbers, use alphabet letters in place of numbers, or talk about squaring a number, I am completely lost. This is nothing new. Even in high school I needed special help and barely passed algebra. Yet, I have worked with electronics all my life. (55+ years). I usually fInd the correct resistors by trial and error, using pots and decade boxes. Or using meters for watts, amps, or volts. Most of the time I see someone in a youtube video using this kind of math, I skip the video. I just hate math and always will. But I'd welcome a piece of software that would calculate simple ohms law things like determining the resisitor size or amperage, etc. Yes, I'm aware of websites that do that math, but I do not have internet access in my shop, which is where I need this sort of thing. Is there any software (preferably free) that I can put on my laptop PC to do this? (Must be suitable for Windows XP SP3 Pro). Google did not find anything except those online (web based) calculators... |
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Software to calculate Ohms Law and other electronics math
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Software to calculate Ohms Law and other electronics math
On 2019/01/26 8:36 p.m., Jeff Liebermann wrote:
On Sat, 26 Jan 2019 21:56:44 -0600, wrote: Is there any Software to calculate Ohms Law and other electronics math? No. It's too easy and simple to make it worthwhile writing a stand alone Ohm's Law program for a PC. There are plenty for IOS and Android devices, but not for PC's. It might be helpful in finding something if you were more specific as to what you mean by "other electronics math"? Is there any software (preferably free) that I can put on my laptop PC to do this? (Must be suitable for Windows XP SP3 Pro). 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. There is the old PIRE wheel, or is that too simple for the OP? Of course then you need to use either your head or a calculator - I mean really, I=E/R, how hard is that? John :-#)# |
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Software to calculate Ohms Law and other electronics math
Web-based software is useful to calculate parallel resistors and such-like. There was a discussion in another group about how to hot-switch between two amplifiers, neither of which would like to be unloaded (but for different reasons).
Turned out that a parallel high-wattage resistor across the amp outputs would do the trick, after a bit of calculation. Using a web-based calculator greatly sped up the process. http://www.1728.org/resistrs.htm Peter Wieck Melrose Park, PA |
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Software to calculate Ohms Law and other electronics math
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#7
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Software to calculate Ohms Law and other electronics math
On Monday, January 28, 2019 at 8:45:04 AM UTC-5, Fox's Mercantile wrote:
On 1/28/19 7:37 AM, wrote: Web-based software is useful to calculate parallel resistors and such-like. Yabut...Tubeguy wants something he can run on his PC since he has a **** connection to the web. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com https://download.cnet.com/Ohm-s-Law-...-77555568.html That took less than a minute. Peter Wieck Melrose Park, PA |
#8
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Software to calculate Ohms Law and other electronics math
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#9
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Software to calculate Ohms Law and other electronics math
wrote:
Is there any Software to calculate Ohms Law and other electronics math? Basic Ohm's Law calculations can be done on a pocket calculator without the need for anything more complicated. The biggest pitfall is knowing *which* voltage or *which* current is actually applied to a particular resistor, especially if there are several in some sort of array.; it is not always obvious. The logic of real-life circuit problems is not particularly amenable to being sorted out by software. -- ~ Adrian Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk |
#10
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Software to calculate Ohms Law and other electronics math
Go to http://www.cq-amateur-radio.com/cq_h..._ham_calc.html and download HAM-CALC ( HCALC_129.zip ). I unzip the file into a ram-disk whenever I need to use the program. Since it uses GWBASIC, you need to type "cmd" in the START - Run.. box. I see that you are using WinXP, so this isn't a problem. For more recent version of Windows, you would have to install DOSBOX first. David --- Adrian Tuddenham wrote: wrote: Is there any Software to calculate Ohms Law and other electronics math? Basic Ohm's Law calculations can be done on a pocket calculator without the need for anything more complicated. The biggest pitfall is knowing *which* voltage or *which* current is actually applied to a particular resistor, especially if there are several in some sort of array.; it is not always obvious. The logic of real-life circuit problems is not particularly amenable to being sorted out by software. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
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Software to calculate Ohms Law and other electronics math
On Monday, 28 January 2019 14:43:47 UTC, Adrian Tuddenham wrote:
wrote: Is there any Software to calculate Ohms Law and other electronics math? Basic Ohm's Law calculations can be done on a pocket calculator without the need for anything more complicated. The biggest pitfall is knowing *which* voltage or *which* current is actually applied to a particular resistor, especially if there are several in some sort of array.; it is not always obvious. The logic of real-life circuit problems is not particularly amenable to being sorted out by software. Ohms law, capacitor reactance, numerous other things are frequently resolved with simple software. And I won't mention spice or its limitations. |
#12
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Software to calculate Ohms Law and other electronics math
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#13
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Software to calculate Ohms Law and other electronics math
On Sat, 26 Jan 2019 20:36:55 -0800, Jeff Liebermann
wrote: On Sat, 26 Jan 2019 21:56:44 -0600, wrote: Is there any Software to calculate Ohms Law and other electronics math? No. It's too easy and simple to make it worthwhile writing a stand alone Ohm's Law program for a PC. There are plenty for IOS and Android devices, but not for PC's. It might be helpful in finding something if you were more specific as to what you mean by "other electronics math"? Well, I lied. I found some Windoze and Java programs that do Ohm's law: https://www.electronics2000.co.uk/download.php#assistant Ohm's Law is under the "other" tab. http://www.cainehorr.com/ohms-law-power-formula-calculator/ http://forums.aussievapers.com/e-cigarette-vaporization-hardware-discussion/24633-ohms-law-calculator.html Ohm's Law simulation: https://phet.colorado.edu/en/simulation/ohms-law (Required Java) More possibles: https://www.google.com/search?q=ohms+law+calculator+windows&tbm=isch -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#14
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Software to calculate Ohms Law and other electronics math
On Sat, 26 Jan 2019 20:36:55 -0800, Jeff Liebermann
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 -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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Software to calculate Ohms Law and other electronics math
On Saturday, January 26, 2019 at 7:56:49 PM UTC-8, 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. |
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Software to calculate Ohms Law and other electronics math
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#17
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Software to calculate Ohms Law and other electronics math
On 2019/01/28 3:21 p.m., Jeff Liebermann wrote:
On Sat, 26 Jan 2019 20:36:55 -0800, Jeff Liebermann 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/prop...tors-front.JPG https://www.flippers.com/images/prop...ators-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." |
#18
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Software to calculate Ohms Law and other electronics math
John Robertson 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/prop...tors-front.JPG https://www.flippers.com/images/prop...ators-rear.JPG ITYM https://www.flippers.com/images/Props/Cardboard_Calculators-front.JPG and https://www.flippers.com/images/Props/Cardboard_Calculators-rear.JPG |
#19
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Software to calculate Ohms Law and other electronics math
On Tue, 29 Jan 2019 11:25:16 -0800, John Robertson
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/prop...tors-front.JPG https://www.flippers.com/images/prop...ators-rear.JPG John :-#)# I get "404 That page doesn't seem to exist... for both URL's. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#20
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Software to calculate Ohms Law and other electronics math
On Tuesday, January 29, 2019 at 3:14:16 AM UTC-8, Mike Coon wrote:
In article , says... On Saturday, January 26, 2019 at 7:56:49 PM UTC-8, 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 |
#21
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Software to calculate Ohms Law and other electronics math
On 2019/01/29 11:40 a.m., Jeff Liebermann wrote:
On Tue, 29 Jan 2019 11:25:16 -0800, John Robertson 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/Prop...tors-front.JPG https://www.flippers.com/images/Prop...ators-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." |
#22
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Software to calculate Ohms Law and other electronics math
On 2019/01/29 11:25 a.m., John Robertson wrote:
On 2019/01/28 3:21 p.m., Jeff Liebermann wrote: On Sat, 26 Jan 2019 20:36:55 -0800, Jeff Liebermann 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.Â* 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/prop...tors-front.JPG https://www.flippers.com/images/prop...ators-rear.JPG John :-#)# Typo, should be: https://www.flippers.com/images/Prop...tors-front.JPG https://www.flippers.com/images/Prop...ators-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." |
#23
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Software to calculate Ohms Law and other electronics math
On Sat, 26 Jan 2019 21:56:44 -0600, wrote:
Is there any Software to calculate Ohms Law and other electronics math? Google. Ohm's law; V ====== I x R |
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Software to calculate Ohms Law and other electronics math
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#25
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Software to calculate Ohms Law and other electronics math
On Wed, 30 Jan 2019 14:38:33 -0000, Mike Coon
wrote: In article , says... On Sat, 26 Jan 2019 21:56:44 -0600, 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 |
#26
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Software to calculate Ohms Law and other electronics math
On Wed, 30 Jan 2019 15:20:07 +0000, Stephen Wolstenholme wrote:
On Wed, 30 Jan 2019 14:38:33 -0000, Mike Coon wrote: In article , says... On Sat, 26 Jan 2019 21:56:44 -0600, 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. -- 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. |
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Software to calculate Ohms Law and other electronics math
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. 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 |
#28
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Software to calculate Ohms Law and other electronics math
On Saturday, January 26, 2019 at 10:56:49 PM UTC-5, wrote:
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. |
#29
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Software to calculate Ohms Law and other electronics math
On Wed, 30 Jan 2019 17:47:58 -0600, Fox's Mercantile wrote:
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. |
#30
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Software to calculate Ohms Law and other electronics math
No, read his posts, and those from his alter-ego, oldstuff....... He's *that* stupid.
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. |
#31
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Software to calculate Ohms Law and other electronics math
On 2/1/19 5:16 PM, Terry Schwartz wrote:
No, read his posts, and those from his alter-ego, oldstuff....... He's*that* stupid. 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. Old School. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
#32
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Software to calculate Ohms Law and other electronics math
On Friday, 1 February 2019 23:05:44 UTC, Cursitor Doom wrote:
On Wed, 30 Jan 2019 17:47:58 -0600, Fox's Mercantile wrote: 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. Everyone has a blindspot somewhere. He's a hobbyist. NT |
#33
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Software to calculate Ohms Law and other electronics math
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#34
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Software to calculate Ohms Law and other electronics math
On 2/3/19 10:02 AM, Mike Coon wrote:
In article , says... No, read his posts, and those from his alter-ego, oldstuff....... He's *that* stupid. 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. I'm not so sure. Back when GPS were new and there was an active GPS forum, lots of people wanted help with how to convert degrees to degrees+minutes. (Despite the USA still liking feet and inches and UK not much better.) Mike. That's just being lazy. Part of the "I want it now" mindset. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
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