Author Topic: Can I use 194k-ohm / 200k-ohm resistor??  (Read 4492 times)

Offline ragrme

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Can I use 194k-ohm / 200k-ohm resistor??
« on: July 03, 2008, 06:39:39 AM »
Quote
L0rdNiC0s Sound Reactive LED Mod for the Slim

Supplies needed for the Sound Reactive LED Mod
30-gauge Kynar wire (best to have different colors)
2x 0603 LED’s
1x 191k-ohm Resistor
1x 30k-ohm Resistor
1x LM386 Audio Amplifier IC
Hot glue gun (optional)
Soldering Iron (nothing more then 15 Watt)
Solder (.015 size works best)
Flux
Drill
3/16 bit
Advanced soldering and PSP disassembly
Access to the Following Tutorials
   PSP Sound Mod by Jrf
   PSP Trigger Mod by Chaos
   PSP Slim & Lite Disassembly Tutorial by T3KN1K4L

QUESTION:
----- Can I use 194k-ohm / 200k-ohm resistor as replacement for the 191k-ohm resistor???
I cant find 191k-ohm resistor....... Help Please!! :help:

------ What wattage do you prefer?? I always buy 1/2 W resistors..
Is it OK???
Live Your World, Mod in Ours.

Offline rceckspurt13

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #1 on: July 03, 2008, 08:02:18 AM »
as far as I know it should be ok but you leds will be dimmer. I guess you'll just have to test it.
Any Questions? Please Contact Me: rceckspurt13@gmail.com

Offline socomhacker239

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #2 on: July 03, 2008, 12:59:53 PM »
yea ur leds will just be dimmer its just resisting more power do the speaker led mod that way you dont have to worry about resisters its way easyer

Offline Ch4rL13

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #3 on: July 03, 2008, 01:17:37 PM »
well dude that tut is for the slim, if u have a slim post this in the slim section
if you have aphat you need a phat tut.


Offline Nemesis

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #4 on: July 03, 2008, 01:29:04 PM »
buy a 100k and 91k and put it together

Offline gr8npwrfl

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #5 on: July 05, 2008, 11:02:34 PM »
If you take the mathematical difference between the 191k and the 194k you are talking less than 2%

You eyes could not see the difference. Only an optical spectrum analyzer could.


Offline ragrme

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #6 on: July 06, 2008, 02:09:44 AM »
@gr8npwrfl
what will happen to the circuit?
will it heat up fast? please help ..
Live Your World, Mod in Ours.

Offline gr8npwrfl

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #7 on: July 06, 2008, 11:33:36 AM »
The circuit will not heat up. It is such a small percentage that you will not be able to see the difference. The difference would only be able to be measured on instruments.

You can use 1/8 watt resistors if you can find them as they are smaller, but 1/4 watt are fine. The 1/2 watt resistors are just to big.

We are dealing with such small amounts of power here that you do not have to worry.

The only time you have to worry is if you are doing something like the ring of light in an xbox and you are using hundreds of leds.

You are fine continue with your project


Offline ragrme

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #8 on: July 07, 2008, 09:05:59 AM »
now my question is..

can this circuit/mod be applied in a PHAT psp????
can someone tell me how to do this mod in a psp phat..

I need it very badly.. please help.. :help: :beg:
Live Your World, Mod in Ours.

Offline PspKicks316

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #9 on: July 07, 2008, 09:37:20 AM »
Well, for starters you could use the SEARCH BUTTON and find the PHAT tutorial. Or, use the same exact thing by wiring to the 5V point on the phat. I don't get why it's so hard to use the search button...

Offline ragrme

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #10 on: July 08, 2008, 06:05:38 AM »
ow really??
i need an answer sir..... not an insult..
and would you MIND showing me WHERE THE +5V IS IN A PSP PHAT AS YOU SAY???

What i need is knowing everything clearly before doing it..
So i can have a good MOD even if not perfect..
Please dont be selfish with me sir..
Im just new here..
I just want to learn..
Live Your World, Mod in Ours.

Offline gr8npwrfl

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #11 on: July 08, 2008, 01:13:53 PM »
This is the link to the sound reactive led mod that was done on a PSP Phat

https://www.acidmods.com/forum/index.php?topic=13477.0

I found this for you by clicking the search button on the main menu bar and typed
"sound reactive led mod"

This was the third item in the results list.

No one is down on you in particular. Many of the regulars here have learned what they learned by reading and researching everything they can. But every day, day in and day out we get people that jump in this forum and say how do I do this or how do I do that ?

For the people that have spent so much time making this place an area of people that come to learn and teach an areas of interest to them, it becomes very frustrating.

Just take it with a grain of salt, a lesson learned.

If you had said that you read the article from Lord Nico on the slim install and you did not know how to search to find the answers you wanted, the response may have not drawn as much fire.

We are here to spread knowledge and teach what we know, but if we answer the same questions over and over and over then no one gets anything new done.

We are glad to help and good luck with your mod.

Welcome to AcidMods.


Offline ragrme

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #12 on: July 10, 2008, 03:24:17 AM »
@gr8npwrfl

thanks so much sir..
Live Your World, Mod in Ours.

Offline 4dP

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #13 on: July 10, 2008, 04:25:27 AM »
buy a 100k and 91k and put it together

Would not work you should look in the wiki ohms law

https://www.acidmods.com/Wiki/tiki-index.php?page=Ohms%20law

PINOY AKO

Offline PspKicks316

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #14 on: July 10, 2008, 11:09:58 AM »
Would not work you should look in the wiki ohms law

https://www.acidmods.com/Wiki/tiki-index.php?page=Ohms%20law

Yeah it will people do it all the time. A big time modder said you could at one time too, I think it MAY have been Cyber, but I don't know. I'm sure a big modder said it at one time or another.

Offline Fayt_Chanya

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Re: Can I use 194k-ohm / 200k-ohm resistor??
« Reply #15 on: July 10, 2008, 05:35:19 PM »
Would not work you should look in the wiki ohms law

https://www.acidmods.com/Wiki/tiki-index.php?page=Ohms%20law


Heh, I know I'm new, but I did take A Level Physics and Electronics.

Ohms Law is Resistance = Voltage/ Current

A resistor in series i.e soldered next to each other have the effect of one COMBINED resistor.

Its when they are conneted in parallel (seperate branches)things get...tricky.

Heres the formula: 1/RTotal= 1/R1 +1/R2 etc

For example if R1 was 3 ohm and R2 was 2 ohm then 1/RTotal= 1/3 +1/2

That equals about 1.2 ohms. So the resistance is less than either of the individual reisitors.

Anyway, adding a 100 kohm and a 91 kohm should get the desired effect.

Fayt
« Last Edit: July 10, 2008, 06:02:21 PM by Fayt_Chanya »

 

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