npturton Posted July 28, 2012 Share Posted July 28, 2012 Due to continuing debate on PSUs anyone made a definitive list of good/bad ones and why? Quote Link to comment Share on other sites More sharing options...
+Philsan Posted July 29, 2012 Share Posted July 29, 2012 If I am not wrong there's already a similar thread. Anyway, I attach an interesting old article. Atari XL XE Power Supplies.pdf Quote Link to comment Share on other sites More sharing options...
AtariLeaf Posted July 29, 2012 Share Posted July 29, 2012 Here's the thread I always refer to, especially post number 2 http://www.atariage.com/forums/topic/95416-power-supplies/page__hl__%2Bpower+%2Bsupplies Quote Link to comment Share on other sites More sharing options...
john-m Posted July 30, 2012 Share Posted July 30, 2012 I have a vented Atari power supply that was cut apart and taped back together that puts out 5.2 volts DC according to my meter. My other vented power supply works and this one does not. I tried replacing the capacitors, but it is still a no go. What should I be looking for to get it working? Oh, information wise, the Atari model number is C061982. Quote Link to comment Share on other sites More sharing options...
Joey Z Posted July 30, 2012 Share Posted July 30, 2012 all I know is that 'ingot' PSU's fail and usually take the atari with them. when they fail, they usually end up at some voltage way too high for the atari... Also, there is a pic somewhere that shows the good vs. bad power supplies, although all I have ever really heard is that the ingots should be thrown away. other than that, you just don't want to plug a supply in that doesn't put out enough juice, which is (I think) more of a problem with heavily modded ataris Quote Link to comment Share on other sites More sharing options...
Bryan Posted July 30, 2012 Share Posted July 30, 2012 Atari 5-pin DIN supplies are linear-type meaning they generate a DC voltage a few volts above 5V and then regulate it down though a transistor (controlled by a feedback loop). The idea is to dynamically limit the amount of current, and thus the voltage drop across the transistor, so the output potential is always 5V. This is usually done using low-cost regulator IC such as the 7805. When the regulator fails, it often connects the output directly to the source voltage forcing too much current through the computer and burning up some IC's. The ingots seem to fail more often than the other supplies which would indicate that they either have a poor circuit design or their epoxy potting doesn't make a very good heatsink. Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted August 1, 2012 Share Posted August 1, 2012 If I am not wrong there's already a similar thread. Anyway, I attach an interesting old article. Atari XL XE Power Supplies.pdf That's weird, this doc is saying that the type 4's are the ones that could go into the over-voltage problem and only deliver 0.93 amps under load... Are the ingots the type II variety or a different animal? Jay Quote Link to comment Share on other sites More sharing options...
BillC Posted August 1, 2012 Share Posted August 1, 2012 If I am not wrong there's already a similar thread. Anyway, I attach an interesting old article. Atari XL XE Power Supplies.pdf That's weird, this doc is saying that the type 4's are the ones that could go into the over-voltage problem and only deliver 0.93 amps under load... Are the ingots the type II variety or a different animal? Jay I don't know if anyone has gone to the trouble of determining the schematic of the INGOT, the potting compound makes this difficult. I do know from personal experience that when an INGOT fails it can go over-voltage and damage ICs in the computer it powers, when mine failed about 25 years ago output was over +8V. I continued to use the defective INGOT for another 6 months or so by simply reducing the output with a 7805 voltage regulator. Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted August 1, 2012 Share Posted August 1, 2012 Yep, I have 1 type III and about 6-8 type IV's and 1 ingot, so I guess I'll take the Dremel to one of the type IV's and see about changing the circuit to use a 7805... Jay Quote Link to comment Share on other sites More sharing options...
King_Salamon Posted August 1, 2012 Share Posted August 1, 2012 Figures... My new 130xe came with the famous Ingot. Well, time to put in an order for a different power supply. (Might as well get a composite video cable while I'm at it - and maybe some other goodies!) Quote Link to comment Share on other sites More sharing options...
toptenmaterial Posted May 15, 2013 Share Posted May 15, 2013 I have an 800... am I in the clear? Quote Link to comment Share on other sites More sharing options...
russg Posted May 15, 2013 Share Posted May 15, 2013 I have an 800... am I in the clear? The 800 uses a 9 v ac, totally different ps from the XL/XE machines. 1 Quote Link to comment Share on other sites More sharing options...
+tzeb Posted May 16, 2013 Share Posted May 16, 2013 Has anybody any experience with the Abbuc power supply? http://www.abbuc.de/abbuc/shop/hardware/schaltnetzteil-fuer-atari-xlxe130211104209 I am thinking of getting one of these; as in Holland the voltage of the grid has been increased from 220 to 230 Volt I think it is better for my Atari to get a power supply that is designed for the higher voltage. I am only wondering how they have managed to get the power supply so compact, compared to the original brick sized Atari power supply. Quote Link to comment Share on other sites More sharing options...
Mathy Posted May 17, 2013 Share Posted May 17, 2013 Hello Tzeb There's really nice. I'm using the RoHS variant. They are compact because they are switching power supplies. Sincerely Mathy Quote Link to comment Share on other sites More sharing options...
Dr Do Posted June 19, 2013 Share Posted June 19, 2013 Has anybody any experience with the Abbuc power supply? http://www.abbuc.de/...lxe130211104209 Well, I've just ordered one, so we'll soon find out... Quote Link to comment Share on other sites More sharing options...
jmccorm Posted June 21, 2013 Share Posted June 21, 2013 I'm using a Type I. Good? Quote Link to comment Share on other sites More sharing options...
Dr Do Posted October 21, 2013 Share Posted October 21, 2013 (edited) Has anybody any experience with the Abbuc power supply? http://www.abbuc.de/abbuc/shop/hardware/schaltnetzteil-fuer-atari-xlxe130211104209 I am thinking of getting one of these; as in Holland the voltage of the grid has been increased from 220 to 230 Volt I think it is better for my Atari to get a power supply that is designed for the higher voltage. I am only wondering how they have managed to get the power supply so compact, compared to the original brick sized Atari power supply. Well, I've just ordered one, so we'll soon find out... A long overdue update - now tried it, and it works nicely. Edited October 21, 2013 by Dr Do Quote Link to comment Share on other sites More sharing options...
+tzeb Posted October 21, 2013 Share Posted October 21, 2013 A long overdue update - now tried it, and it works nicely. I have also ordered it. It is really small and works nicely indeed. Quote Link to comment Share on other sites More sharing options...
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