ATLynxer Posted September 12, 2017 Share Posted September 12, 2017 Hi, the original mosfet for the Lynx I & II, Motorola, cod. MTD3055E and ALSO its replacement, ST, cod. STD12N06 are out of production I found STD12NF06L mosfet. In production at the moment. Does it fit for the purpose, in your opinion? Here the datasheets: MTD3055E: http://www.alldatasheet.com/datasheet-pdf/pdf/168557/MOTOROLA/MTD3055E.html STD12N06: http://www.alldatasheet.com/datasheet-pdf/pdf/24013/STMICROELECTRONICS/STD12N06.html STD12NF06L: http://www.alldatasheet.com/datasheet-pdf/pdf/24018/STMICROELECTRONICS/STD12NF06L.html Quote Link to comment Share on other sites More sharing options...
+karri Posted September 12, 2017 Share Posted September 12, 2017 Sounds ok to me. Get the one with suffix T4. 1 Quote Link to comment Share on other sites More sharing options...
ATLynxer Posted September 12, 2017 Author Share Posted September 12, 2017 Sounds ok to me. Get the one with suffix T4. Thanks for your opinion karri...and off course the t4 to-252 Quote Link to comment Share on other sites More sharing options...
+Stephen Moss Posted September 13, 2017 Share Posted September 13, 2017 Towers lists SMD15N05 as a replacement if that is still in production as my copy of Towers is date 1994! The NTD3055L104G NTD3055L104T4G appear to be direct replacements and still in production. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted September 13, 2017 Share Posted September 13, 2017 This should be all you need: https://console5.com/store/atari-lynx-1-2-voltage-regulator-rebuild-refresh-kit-with-power-jack.html 1 Quote Link to comment Share on other sites More sharing options...
ATLynxer Posted September 13, 2017 Author Share Posted September 13, 2017 (edited) I talked with some electronic experts here in Italy. We compared the datasheets (for the Lynx expressly) and they told me that STD12NF06L is better than the original mosfet.... i've ordered a couple and I will try it... Edited September 13, 2017 by ATLynxer 1 Quote Link to comment Share on other sites More sharing options...
ATLynxer Posted September 17, 2017 Author Share Posted September 17, 2017 I confirm you it works great! 1 Quote Link to comment Share on other sites More sharing options...
GadgetUK Posted September 18, 2017 Share Posted September 18, 2017 I confirm you it works great! Great =D I've ordered some too. Next we need to find a better replacement for the zenner! I guess just uprating the current capability should do there. Quote Link to comment Share on other sites More sharing options...
cowdog360 Posted October 23, 2017 Share Posted October 23, 2017 I'm now using a 2SK2231 MOSFET. Modern, more available, a LOT more efficient.. burns less power. Quote Link to comment Share on other sites More sharing options...
Level42 Posted October 25, 2017 Share Posted October 25, 2017 Best option is getting rid of the entire 9V to 5V section.... Quote Link to comment Share on other sites More sharing options...
+karri Posted October 25, 2017 Share Posted October 25, 2017 Best option is getting rid of the entire 9V to 5V section.... I wonder if there is some modern powerpacks that would fit in the Lynx cover? USB power sockets are everywhere so you would just need a small cable to charge the powerpack. Perhaps a powerpack with dual output would work (one for the Lynx, one for McWill screen). These powerpacks seem to deliver up to 2A per port. Quote Link to comment Share on other sites More sharing options...
icemanxp300 Posted December 30, 2017 Share Posted December 30, 2017 Can you send me a link to what you purchased? I need a new mosfet. Mine would not power on so I watched a YouTube video about bypassing it by running a wire from battery negative to headphone jack ground. Yes it did work and the Lynx powered on but I also had smoke coming out LOL. I opened it up to see the insulation on the wire had been burning off. I guess ide wire is not good for this application. At any rate I know what the problem is now. Quote Link to comment Share on other sites More sharing options...
+karri Posted December 30, 2017 Share Posted December 30, 2017 The age of the Lynx is killing the capacitors as well. So I would suggest to change the whole set. My White Lynx died recently and just changing the largest capacitor brought it back. http://atariage.com/forums/topic/254446-lynx-power-circuit-upgraderepair-better-than-5v-mod/?p=3776590 I still have a set in case you want one. Quote Link to comment Share on other sites More sharing options...
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