100uF capacitor and 2k Ohm resistor

Includes but not limited to: SNES, Genesis, Sega CD, PlayStation 1, Nintendo 64, Dreamcast, Game Gear and I guess the Virtual Boy.

Moderator:Moderators

Post Reply
User avatar
Normano
Posts:14
Joined:Wed Aug 25, 2010 9:40 am
Steam ID:Normano5
100uF capacitor and 2k Ohm resistor

Post by Normano » Thu Sep 09, 2010 7:54 am

Hi!

I been searching but can't find what kind of 100uF capacitor I need for making a N64p(it exist more then one kind)
Do this one work: http://cgi.ebay.com/20-pcs-100uF-16V-El ... 0515730421
I will use a 7.4v li-po battery but don't know what kind of 100uF capacitor.

Will this work http://cgi.ebay.com/20-pcs-1W-1-2k-ohm- ... 0562545397 as 2k Ohm resistor? :P

Thanks

User avatar
timmeh87
Senior Member
Posts:3047
Joined:Mon Nov 14, 2005 10:19 pm
Location:Ontario, Canada

Re: 100uF capacitor and 2k Ohm resistor

Post by timmeh87 » Thu Sep 09, 2010 11:37 am

Sure will work but you could go with smaller resistors. Those ones are pretty big.
Image

"Linux is only free if your time is worthless"

User avatar
Normano
Posts:14
Joined:Wed Aug 25, 2010 9:40 am
Steam ID:Normano5

Re: 100uF capacitor and 2k Ohm resistor

Post by Normano » Thu Sep 09, 2010 1:11 pm

Like this: http://cgi.ebay.com/100-pcs-1-4W-2k2-2- ... 0479203063
How many Ampere do the n64p's 3.3v line take? 3.3v/0.25w = 0.075A
Also I noticed that I choose 1.2k Ohm resistor :P

User avatar
blaze3927
Portablizer
Posts:1114
Joined:Mon Dec 08, 2008 6:14 am
360 GamerTag:notjames
Location:Australia
Contact:

Re: 100uF capacitor and 2k Ohm resistor

Post by blaze3927 » Thu Sep 09, 2010 9:51 pm

1/4 watts are fine
Australian Kaillera server
[url]hhttp://i56.tinypic.com/ncb0wi.gif[/url]

User avatar
timmeh87
Senior Member
Posts:3047
Joined:Mon Nov 14, 2005 10:19 pm
Location:Ontario, Canada

Re: 100uF capacitor and 2k Ohm resistor

Post by timmeh87 » Thu Sep 09, 2010 11:27 pm

the current does not go through that resistor, and its more than 1 amp IIRC
Image

"Linux is only free if your time is worthless"

User avatar
Normano
Posts:14
Joined:Wed Aug 25, 2010 9:40 am
Steam ID:Normano5

Re: 100uF capacitor and 2k Ohm resistor

Post by Normano » Fri Sep 10, 2010 7:52 am

blaze3927 wrote:1/4 watts are fine
Good :)
timmeh87 wrote:the current does not go through that resistor, and its more than 1 amp IIRC
I understand.

User avatar
Bush
Posts:672
Joined:Fri Jul 16, 2010 2:54 pm

Re: 100uF capacitor and 2k Ohm resistor

Post by Bush » Sun Sep 12, 2010 11:24 am

Hey, a word of advice: Eurdrue and I have both had issues using 2k resistors. With our N64's, the boards couldn't handle the slight undervolt and would turn on, give interference with the AV signals, then turn off. I have mine hooked up with a 2k and am only getting 3.2v max, before switching to speaker wire I only got 3v. In our cases, I believe the board had less tolerance for the input voltage and simply just needed more power. I would recommend using a 1.8k resistor, which is supposed to give around 3.43 volts, plenty of power for the 3.3v line. I hope you don't have issues with your 2.2k resistor, the higher resistance the less voltage is outputted.

User avatar
Normano
Posts:14
Joined:Wed Aug 25, 2010 9:40 am
Steam ID:Normano5

Re: 100uF capacitor and 2k Ohm resistor

Post by Normano » Sun Sep 12, 2010 11:34 am

But if I use 1.8k Ohm resistor + 100 Ohm resistor then it would be better because I wont overvolt it and damage the motherboard?

User avatar
Bush
Posts:672
Joined:Fri Jul 16, 2010 2:54 pm

Re: 100uF capacitor and 2k Ohm resistor

Post by Bush » Sun Sep 12, 2010 1:28 pm

I dont think youll hurt it as long as its under about 3.7 volts, and if you put those resistors in series (connect them) then you will get 1.9k, which would probably work great. Test it with a multimeter first.

Snow_Cat
Posts:463
Joined:Fri Aug 13, 2010 12:40 pm
Steam ID:Snow_Cat
Location:Here
Contact:

Re: 100uF capacitor and 2k Ohm resistor

Post by Snow_Cat » Sun Sep 12, 2010 4:00 pm

^ - -^ results may vary; If (1.8K+100)Ω proves to be too much reistance, the 100Ω can always be removed/shorted out, or a 3.42KΩ can be put in parallel.

Post Reply