CosmicJoke Posted August 22, 2002 Share Posted August 22, 2002 This is the technical info for this power supply I want to modify for a "homemade" 2600 PSU. 9VDC 1A POWER ADP MFG: ATARI Input: 120VAC 60Hz Output: 9VDC @ 1A Specifications/Features: 2 Prong input, 8’ cord with 3.5mm (O.D.) and 1mm (I.D.) coaxial connector for output, Center positive. UL/CSA Listed L: 3" W: 2-3/8" H: 2" WT: .9 I will post a picture of it at the bottom of this post. I believe the connector needs to be switched to a 1/8" type, right? So my question is: If I cut off this wrong connector to solder on a new 1/8" connector, how will I know which of the 2 wires is positive? I need to know this so that I can solder it on the center of the new connector? Sorry, if I sound like an "electronics moron" but I am! If I accidentially reverse the polarity when I solder the two wires into the new connector and plug the power supply into the 2600, will it ruin it? This power supply is new and really cheap. That is why I am considering the attempt at modifying it. Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/ Share on other sites More sharing options...
Eduardo Posted August 22, 2002 Share Posted August 22, 2002 You need to get yourself a Voltimeter tester, some models are as cheap as under $10, don't be scared by those pricey pro models, look for an amateur taiwanese version, it always come in handy to test Batteries voltages, light bulbs etc. When you get the Voltimeter set the dial to test in the range of 0-10 DC volts, now tie everything and put the (+) red lead on the center of the power jack and the (-) black lead on the outter part. If the needle runs backwards then untie everything and swap those wires. Now you can safely plug it into your VCS. If you don't want to buy a Voltimeter, if you accidentaly plug the power jack with the reverse polarity at best your VCS won't work, but I don't recommend you to do this trial and error test, just get a Voltimeter will ya? Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/#findComment-126558 Share on other sites More sharing options...
CosmicJoke Posted August 22, 2002 Author Share Posted August 22, 2002 Eduardo, thanks for your great reply! I don't know much about electronics but you have explained well enough for me to understand. I guess I can get a cheap Voltimeter at Radio Shack? Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/#findComment-126563 Share on other sites More sharing options...
Lemmi Posted August 22, 2002 Share Posted August 22, 2002 or at ACO Hardware stores, if you have one of those stores near you Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/#findComment-126567 Share on other sites More sharing options...
CosmicJoke Posted August 22, 2002 Author Share Posted August 22, 2002 "or at ACO Hardware stores, if you have one of those stores near you " I have never heard of this store, so, I don't think I have one near me. Although, sometimes I can be incredibly unobservant. I sure hope I can find a cheap one somewhere. I would hate to guess the polarity wrong and ruin a 2600! I bought a medium sized lot of "junker" 2600's, a couple other systems, and some accessories on eBay. My hope is to gather up a couple of working sets and make a reasonable profit. With the profit I want to get the new PSX to 5200 adapter that Clay Cowgill is producing. Sorry for the back story, I guess I am feeling chatty today. Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/#findComment-126582 Share on other sites More sharing options...
eggplant_casserole Posted August 29, 2002 Share Posted August 29, 2002 Please make sure the PSU is REGULATED first! It should be, but if not you risk putting up to 18V into your system! Yes, get a 3.5mm mono connector. As everyone said, use a multimeter or voltmeter to test. You may find your local radio shack guy would let you use his, or tv repair man, if you ask nicely. Mind you, most PSUs have a stripe on one lead. Radio Shack is good, or www.mcmelectronics.com - to name just two of many Good luck with the project - you're gonna need it! e-mail if you have any questions Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/#findComment-130043 Share on other sites More sharing options...
eggplant_casserole Posted August 29, 2002 Share Posted August 29, 2002 BTW, 1A is quite a lot more than 500mA, but should be OK. If you have problems, the afforementioned will have dedicated 9V 500mA DC PSUs with the right connector - or try eBay or myatari for one Quote Link to comment https://forums.atariage.com/topic/12865-help-with-modifying-a-power-supply-for-use-with-the-2600/#findComment-130044 Share on other sites More sharing options...
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