June 14, 201214 yr comment_520400 +/- 502v!!! The PSU is finally working! And to think I originally believed that buying 3 boards was overkill... Report
June 14, 201214 yr comment_520426 congrats!! Thanks! Now if anyone has any tips for desoldering to-220 heatsinks from the board... this is much harder than removing a through-hole device I've been going at this for 45 minutes and haven't managed to remove a single one of the four Report
June 14, 201214 yr Author comment_520429 why do you need to unsolder the heatsinks? It was designed to be repaired without ever doing that. Report
June 14, 201214 yr comment_520431 Because I mismeasured and my heatsinks need to be shaved 2mm (I don't want to put a hole in the top of my chassis, and I'm not comfortable with using any shorter standoffs) Once my wife gets home, I may have her yank on the heatsink with pliers while I heat both of the joints. I've spent over an hour with my desoldering pump and braid with no luck... not to mention the ridiculous amounts of flux vapors now permeating the air in my living room why do you need to unsolder the heatsinks? It was designed to be repaired without ever doing that. Edited June 14, 201214 yr by El_Doug Report
June 14, 201214 yr comment_520432 Yeah, just cut the component leads and them desolder and clear the holes. If you really want to remove the sinks then an OKI/Metcal iron is your friend. A few seconds and they are loose... Ohh and I do it by heating one joint, edging that out 1mm or so, then the other joint until it's free. Edited June 14, 201214 yr by spritzer Report
June 14, 201214 yr Author comment_520435 i would make a new top out of 1/4 material and machine out areas for the heatsinks. the heatsinks are grounded, so this would work great. Report
June 15, 201214 yr comment_520518 Very nice John, its already very nice as it is. Congratulations El_Doug. Report
June 22, 201214 yr comment_521837 It would be interesting to know how many functioning KGSSHV's are out there. 1 Kevin Gilmore 2 Spritzer 3 Horio 4 Dave 5 Blubliss 6 Victor Chew 7 Hdman 8 Johnwmcclean 9 Eggil 10 ?? Report
June 22, 201214 yr Author comment_521840 Does more than 1 count? 3 of the 4 units that were built by the one guy (i forgot already) work, i'm not sure who owns them. The 4th unit is erico, and his should be fixed soon. I know there are a few units overseas already, don't know those people either. i get a bunch of thankyou's in emails, but usually can't put the avatars and names together. Edited June 22, 201214 yr by kevin gilmore Report
June 22, 201214 yr comment_521842 10 - Tari I'll post a couple pictures when I get the chance. Report
June 23, 201214 yr comment_521858 I believe T-Money has a working one too. Kerry was on it, but not sure if its completed. He wanted to increase the current. Report
June 23, 201214 yr comment_521886 It would be interesting to know how many functioning KGSSHV's are out there. 1 Kevin Gilmore 2 Spritzer 3 Horio 4 Dave 5 Blubliss 6 Victor Chew 7 Hdman 8 Johnwmcclean 9 Eggil 10 ?? I'm sure there's another one somewhere... Report
June 23, 201214 yr comment_521898 T-Money definitely has one. I helped him build it. 1 Kevin Gilmore 2 Spritzer 3 Horio 4 Dave 5 Blubliss 6 Victor Chew 7 Hdman 8 Johnwmcclean 9 Eggil 10 T-Money Edited June 23, 201214 yr by Horio Report
June 23, 201214 yr comment_521899 I'm sure there's another one somewhere... Yours. How's it functioning now? Working well now I hope. Report
June 23, 201214 yr comment_521905 Sorry Livewire, and yours was the first one, not counting Kevin's So about 16 so far Edited June 23, 201214 yr by eggil Report
June 23, 201214 yr comment_521930 Yours. How's it functioning now? Working well now I hope. It functions but requires some tweaking. A while back, I shoehorned a monster Antec that Frank Cooter recommended to replace the fried SumR. Still need to install the LSK389 FETs on the amp boards, I suspect that it has drift issues with the discreet input devices. Sorry Livewire, and yours was the first one, not counting Kevin's So about 16 so far No apologies needed, Kevin put the pen to paper, he's #1 in my book! Report
June 23, 201214 yr comment_521936 Started building my off board. PSU -ve HV side blew up sending parts of one FQPF8N80C flying around. LV and the +ve HV is fine with nice readings. Checked for shorts but don't see any so far. Took down the other FPF8N80C, 2N3904 and diode 24v with it. 20K resistor slightly blackened but tested ok. Trouble shooting now. Edited June 23, 201214 yr by Victor Chew Report
June 23, 201214 yr comment_521949 On close examination of the FQPF8N80C realised that 2 looked different. On the +ve HV side which works fine uses the same ones as in my perfectly working on board version. Fakes, I believe brought the -ve HV rails down. Bought them from my local electronic store. Should have looked closer before puttng them to work. In anycase, will have to get them replaced. Report
June 23, 201214 yr comment_521956 I believe Deadlylover has his going and has sold his B22 and dynamic phones. I've almost completed my KGSS (cosmetic issues still to do). I have 4 sets of boards stuffed and 2 chassis ready to roll. Just need assembling and wiring, and more free time.. Edited June 23, 201214 yr by wink Report
June 23, 201214 yr comment_522002 Victor, are you testing your transistors before installing them? For what is worth, as recommended by somebody else, I tested them with a DUOYI 294 and have only bought from reputable sources like Mouser, BDent or similar. Report
June 24, 201214 yr comment_522066 I got the DUOYI 294. Did sampling only and they seem fine so I assumed they were all ok. I guess everyone has to be tested in future. Bought it from the same fellow but the second batch are all fakes. I will go to the shop next week and show it to them. Bought it from them because of long and good previous relationship and wanted to sgupport them where possibe. Report
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