chrisk Posted October 5, 2015 Report Share Posted October 5, 2015 I've got a 1981 M20K (231), On my last flight it seems as if the left hand strobe is not as strong as the right hand strobe. Has anyone else experienced this? What are potential causes? Bad bulb? Bad power supply? Quote Link to comment Share on other sites More sharing options...
Brandontwalker Posted October 5, 2015 Report Share Posted October 5, 2015 Chris, It could be the power supply (probably a capacitor) or the bulb. A new bulb is cheap enough. Depending on the strobe system you have, you can also test the power supply by swapping sides (this assumes you have a power supply in each wing). If you find out it is the power supply, send me a PM. Quote Link to comment Share on other sites More sharing options...
Raptor05121 Posted October 6, 2015 Report Share Posted October 6, 2015 Time to upgrade to LED. 1 Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted October 6, 2015 Report Share Posted October 6, 2015 A bulb is only $45.... Quote Link to comment Share on other sites More sharing options...
Brandontwalker Posted October 6, 2015 Report Share Posted October 6, 2015 I bought one from Chief several weeks ago for $32. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
chrisk Posted October 6, 2015 Author Report Share Posted October 6, 2015 I bought one from Chief several weeks ago for $32. Sent from my iPhone using Tapatalk What bulb did you get. I have an A627, which is a bit more (like $80). Quote Link to comment Share on other sites More sharing options...
Brandontwalker Posted October 6, 2015 Report Share Posted October 6, 2015 What bulb did you get. I have an A627, which is a bit more (like $80). Mine was the AF version: http://www.chiefaircraft.com/af-073-0141.html 1 Quote Link to comment Share on other sites More sharing options...
capthaak Posted October 9, 2015 Report Share Posted October 9, 2015 My left strobe went out. I just changed my 81 J to LED, so I have a power supply cheap! Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
chrisk Posted October 12, 2015 Author Report Share Posted October 12, 2015 My left strobe went out. I just changed my 81 J to LED, so I have a power supply cheap! Sent from my iPad using Tapatalk I'm curious what sort of LED solution you went with. I took a closer look at my strobes and they are to older style. I believe SDi made them and it doesn't seem like bulbs are readily available. It's quite the contraption where the bulb, reflector, and fixture are all combined. --In any case, I still have more work to isolate the issue to power supply or bulb. Quote Link to comment Share on other sites More sharing options...
Zwaustin Posted October 13, 2015 Report Share Posted October 13, 2015 Same thing happened on my 231 when i picked it up. Maxwell installed a refurbished power supply (due to pre buy inspect finding) but it never worked right. Installed a brand new wheels supply and haven't had an issue since. Quote Link to comment Share on other sites More sharing options...
capthaak Posted October 13, 2015 Report Share Posted October 13, 2015 Well I can sell you my working strobes with power pack for $200, or you can go the LED route for $900 if you replace both. Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
capthaak Posted October 13, 2015 Report Share Posted October 13, 2015 Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
capthaak Posted October 13, 2015 Report Share Posted October 13, 2015 Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
carusoam Posted October 13, 2015 Report Share Posted October 13, 2015 Nice video, capt! The LEDs are bright and stay on long enough to really register in the brain... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
mooniac15u Posted October 13, 2015 Report Share Posted October 13, 2015 Last time I looked Whelen's STC didn't list the M20J. Did you do this conversion with a field approval? Quote Link to comment Share on other sites More sharing options...
Brandontwalker Posted October 13, 2015 Report Share Posted October 13, 2015 Which unit did you go with? Those look nice. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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