jham55 Posted April 21, 2022 Share Posted April 21, 2022 Hello, has anyone been able to source the plug on the circuit board that the power cable fits into? Is this an option? https://www.bonanza.com/listings/Atari-7800-Replacement-Power-connector-USA-SELLER-free-shipping/1191519602 Also, where do people find 7800 pro power adapters? They seem to be 50-60 bucks. thanks Quote Link to comment Share on other sites More sharing options...
+Muddyfunster Posted April 21, 2022 Share Posted April 21, 2022 Usually it's easier to replace the connector and PSU for a modern alternative. 1 Quote Link to comment Share on other sites More sharing options...
jham55 Posted April 21, 2022 Author Share Posted April 21, 2022 Yeah that makes sense. Any recommendations? Quote Link to comment Share on other sites More sharing options...
Trebor Posted April 21, 2022 Share Posted April 21, 2022 46 minutes ago, jham55 said: Also, where do people find 7800 pro power adapters? They seem to be 50-60 bucks. New 2018 boxed Best Auto switching Upgraded / Enhanced Atari 7800 Power Supply with the normal 90 day Atari Warranty. Part No. CA025492-303 Model No. CX781 U$D 21.00 https://www.best-electronics-ca.com/New Best 7800 Power supply.htm Phone: 408-278-1070 (1:30 - 5 PM, PST, M - F) E-Mail: bestelec@bestelec.digitalspacemail8.net 4 Quote Link to comment Share on other sites More sharing options...
dankcomputing Posted April 22, 2022 Share Posted April 22, 2022 The weird 2-pin connector IS used on other equipment, so what I've done in the past is get a cheap junk power brick that has the funky connector and then get another power brick that's openable and has the right voltage and swap the cable over. 1 Quote Link to comment Share on other sites More sharing options...
+sramirez2008 Posted April 22, 2022 Share Posted April 22, 2022 7 hours ago, Trebor said: New 2018 boxed Best Auto switching Upgraded / Enhanced Atari 7800 Power Supply with the normal 90 day Atari Warranty. Part No. CA025492-303 Model No. CX781 U$D 21.00 https://www.best-electronics-ca.com/New Best 7800 Power supply.htm Phone: 408-278-1070 (1:30 - 5 PM, PST, M - F) E-Mail: bestelec@bestelec.digitalspacemail8.net I purchased one of the new Best 7800 power supplies and its great! It's powering my daily driver as we speak. I recommend it and plan on getting a second one as a backup. 1 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 22, 2022 Share Posted April 22, 2022 I really wish another large scale source for those 2 prong plugs could be found. Would really like to know who bought out console5's stock of the ones they had. They literally had over 400 of them and then practically overnight, they were down to less than 100 and within a week...none. I was able to purchase about a dozen during that timeframe but man... As has been noted, Best does sell a replacement that I've heard good things about although I've not used one myself. I still have a few OEMs on hand for spares. But since I mainly use my DragonFly cart on my daily driver these days, I actually use a different PSU setup since the DF doesn't use the original plug type. But if I should need a replacement PSU in the future, I would just clip the wire off the old PSU with the plug on it and then wire that into a different PSU with the same specs. True it doesn't look 'elegant' but it would get the job done. You can also modifiy the console to use a standard barrel jack DC connector on it and I've done this a few times. But it isn't a drop in replacement so you have to epoxy the replacement into place and wire it up to the needed points on the main board. But doing that you could use a more common PSU like from a Sega Genesis or similar system. 1 Quote Link to comment Share on other sites More sharing options...
jham55 Posted April 22, 2022 Author Share Posted April 22, 2022 Do you guys know what this piece is or does? It is rather loose. I"m wondering If I should replace or resolder. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 22, 2022 Share Posted April 22, 2022 (edited) 22 hours ago, jham55 said: Do you guys know what this piece is or does? It is rather loose. I"m wondering If I should replace or resolder. That is the MJE210 transistor. It is essential to the power on/off of the system and needs to be soldered in securely. Hopefully it still works okay.. I just had to replace one of these on a 7800 recently that wasn't powering on due to a faulty 201. Edited April 23, 2022 by -^CrossBow^- Corrected mistype on PN Quote Link to comment Share on other sites More sharing options...
jham55 Posted April 23, 2022 Author Share Posted April 23, 2022 Where did you find a replacement? Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 23, 2022 Share Posted April 23, 2022 1 hour ago, jham55 said: Where did you find a replacement? Honestly? I took it off another 7800 parts board. But the 5200 has two of them. I've been meaning to look for a current day equivalent replacement but hadn't gotten around to it yet. They don't go out that often although it can happen of course. And it seems that an equivalent part is in stock at Mouser: I should probably place an order for a few to have on hand soon. https://www.mouser.com/ProductDetail/?qs=HVbQlW5zcXUfL2%2FzUAC2%2FQ%3D%3D Quote Link to comment Share on other sites More sharing options...
jham55 Posted April 23, 2022 Author Share Posted April 23, 2022 I’m in Ohio. Can you take a pic of it? I’m curious how how flush to the board it should be. Quote Link to comment Share on other sites More sharing options...
JayArgonaut Posted April 23, 2022 Share Posted April 23, 2022 On 4/22/2022 at 3:52 AM, dankcomputing said: The weird 2-pin connector IS used on other equipment, so what I've done in the past is get a cheap junk power brick that has the funky connector and then get another power brick that's openable and has the right voltage and swap the cable over. Is the attachment with the green connector compatible? It looks similar to the one used for the 7800. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 23, 2022 Share Posted April 23, 2022 1 hour ago, JayArgonaut said: Is the attachment with the green connector compatible? It looks similar to the one used for the 7800. No...that is much wider in size than it looks. That is a generic part so that you can plug it into the adapter and then run wires externally from the screw terminal block. We actually use these in security camera installs because the cameras use a barrel jack DC input but we have to make very long wire runs and will use speaker wire using those connectors to attach back to the cameras within the walls. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 23, 2022 Share Posted April 23, 2022 4 hours ago, jham55 said: I’m in Ohio. Can you take a pic of it? I’m curious how how flush to the board it should be. It isn't really supposed to be flush to the board or at least I've never seen them installed flush to the PCB. They are always standing a little proud off the board. They generate some heat as they provide the switching over to the actual voltage regulator and therefore they take the brunt of the input voltage from the power supply. So best to leave them standing a little high water off the PCB to allow for air flow around the component. The one you original show in the picture, is actually mounted at about the normal height I see them. And they are also frequently mounted offset at an angle and not straight either LOL! Atari quality in the late 80s and all that. Quote Link to comment Share on other sites More sharing options...
JayArgonaut Posted April 23, 2022 Share Posted April 23, 2022 4 minutes ago, -^CrossBow^- said: No...that is much wider in size than it looks. That is a generic part so that you can plug it into the adapter and then run wires externally from the screw terminal block. We actually use these in security camera installs because the cameras use a barrel jack DC input but we have to make very long wire runs and will use speaker wire using those connectors to attach back to the cameras within the walls. Damn it! That's such a shame because it's £8.95 on eBay UK. Ah well... Thanks. ? Quote Link to comment Share on other sites More sharing options...
dankcomputing Posted May 13, 2022 Share Posted May 13, 2022 What sucks is that there's no formal name or manufacturer for these plugs that I know of, even though they were used on other equipment besides the 7800. Would help a lot in tracking replacements down. I do know there's a version of it floating around with either an indent or no tab at the top, so that's something to watch out for. Quote Link to comment Share on other sites More sharing options...
Shawn Posted May 13, 2022 Share Posted May 13, 2022 (edited) 8 hours ago, dankcomputing said: What sucks is that there's no formal name or manufacturer for these plugs that I know of, even though they were used on other equipment besides the 7800. Would help a lot in tracking replacements down. I do know there's a version of it floating around with either an indent or no tab at the top, so that's something to watch out for. That new Best Electronics one is $21. Just go with that. A heck of a lot better than paying ~$40+ for an original (seems that is the going rate now? Bonkers.) and you don't have to piss around frankenstiening another power supply with a compatible female plugged cord from a charger. If that is your thing though, I believe console5 still has some of the cords you are speaking of. EDIT: Nope console5 is out of those cords. Edited May 13, 2022 by Shawn Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted May 13, 2022 Share Posted May 13, 2022 3 hours ago, Shawn said: That new Best Electronics one is $21. Just go with that. A heck of a lot better than paying ~$40+ for an original (seems that is the going rate now? Bonkers.) and you don't have to piss around frankenstiening another power supply with a compatible female plugged cord from a charger. If that is your thing though, I believe console5 still has some of the cords you are speaking of. EDIT: Nope console5 is out of those cords. The original question @Shawn was for the part that is actually on the main board. The actual power port itself not so much the power supply cable female end. Unless I misunderstood the original question? Quote Link to comment Share on other sites More sharing options...
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