Power Adaptors / Famicom Power Supply

[The Ancient]

However on the back of my adapter there's a swtich 200-240V AC and 100-120V AC.

Which one should I use?

Also in the front I put in 9 for volt change and what is the POLARITY thing do?

EDIT: Here's my adapter that I have http://www.shoppingwarehouse.net/prod-80552.html?src=froogle&src1=sw&src2=gbase&utm_source=Froogle&utm_medium=Product%2BSearch%2BEngine

[JC]

You're in CA...you should use 100-120V since US outlets are 120V. If I remember right, polarity should be + ----C---- -.

[The Ancient]

Does anyone have any pictures of which Sega's power adapter that works well? I tried to find some but there's many different kind.

Thanks.

Edit: I have Sega Genesis MODEL: 3025 adapter. It's input 120V 6-Hz 15W and Output is 9VDC 1A

+ -()- - (the polarity thing)

does that work? or is it dangerous?

[madman]

Wow, how many times do we have to cover this same exact topic in this thread?  A Genesis power supply works fine.

[keiffer01]

I'm not sure; can I use a genesis adapter with the Famicom Disk System? If not, what adaptors would work with it?

[133MHz]

It's good to see you people caring so much about the power requirements of your systems. I usually get loads of fried consoles (especially famiclones) because somebody plugged in an incorrect power adapter (especially Atari power supplies) or destroyed the entire RF board by plugging AC into their poor systems (I've seen that happen to a SNES... oh the suffering!!!)

Maybe we need some pictures of the adapters and their correct settings here to illustrate people, when I get my digital camera back I'll upload some

EDIT: BTW, the toaster NES uses AC, but it can work with negative tip DC just fine.

[madman]

How many times is it possible to say the same thing and still have people ask the same exact question?

[JC]

People don't like to search...that's the nature of forums...you post your question and get an answer.

You can find FDS AC requirements in Workshop on the site.

[satoshi_matrix]

I've got a question that I'm almost certain I already know the answer to, but I want to confirm. I've discovered I can power my giant toaster NES with my Famicom 100v adaptor. Will that harm my NES in the long run?

[133MHz]

The NES expects 9V AC but it will also work with negative tip DC. It has a bridge rectifier built in, getting DC into that actually LOWERS the voltage by 0,7V (by the semiconductor nature of the rectifier diodes) so the marginal amount of overvoltage you are seeing on the secondary caused by getting ~20V extra on the primary is actually diminished. I don't see why you make such a fuss about it Also a +/- 10~20V is in the margin of tolerance of most equipment.

If you want to be reeeeeaaaally kind with your NES/Famicom, get a 9~12V regulated switching well-filtered power supply with at least 2A of current capability. But my systems are happily chugging along with unregulated wall warts

[satoshi_matrix]

Good to know, but I'm not sure if my question was answered or not!

Will using a 100-240VAC AC 9v DC 1A AC adaptor in a 120v wallsocket on a NTSC Nintendo Entertainment System cause the console any harm?

[133MHz]

Just respect the polarity if it's DC. (Negative tip)

[satoshi_matrix]

I'm afraid I'm not so sure about how to read polarity. My adaptor looks like this if you can discern what it means:

(((   -  (·  + 

[133MHz]

I hope this quick Mspaint drawing I made would clear any confusions left about how to power your systems

[satoshi_matrix]

hmm.....it looks like the one I have is a positive tip then. What does that mean in the long run?