sorenb Posted July 30, 2016 Report Share Posted July 30, 2016 3 hours ago, s_r said: PSU issue solved I replaced one of the KSC5026Ms and now the supply outputs +452V. Probably replaced more sand than necessary, but I'm just glad it works now. how does it test out of circuit? Quote Link to comment Share on other sites More sharing options...
s_r Posted July 30, 2016 Report Share Posted July 30, 2016 (edited) Just doing a diode test it was the same as the one I replaced it with (out of the board). It showed difference before I took it out though. I suppose I'd have to test it some other way to find the difference. Edited July 30, 2016 by s_r Quote Link to comment Share on other sites More sharing options...
sorenb Posted July 30, 2016 Report Share Posted July 30, 2016 54 minutes ago, s_r said: Just doing a diode test it was the same as the one I replaced it with (out of the board). It showed difference before I took it out though. I suppose I'd have to test it some other way to find the difference. I bet the PSU will work if you put it back in ... what kind of solder and iron are you using? Quote Link to comment Share on other sites More sharing options...
Dave R Posted July 30, 2016 Report Share Posted July 30, 2016 17 hours ago, purk said: Posted this picture awhile back...sorry for not having a better picture. Nice layout of controls Quote Link to comment Share on other sites More sharing options...
astrostar59 Posted July 30, 2016 Report Share Posted July 30, 2016 On 21 May 2016 at 8:26 AM, johnwmclean said: Very nice and high quality build. I also like the 2 x LEDs, I assume to show left and right side powered up. Neat. Quote Link to comment Share on other sites More sharing options...
s_r Posted July 30, 2016 Report Share Posted July 30, 2016 Just now, sorenb said: I bet the PSU will work if you put it back in ... what kind of solder and iron are you using? Just some basic kit, a hakko 888 & kester 63/37. 1 Quote Link to comment Share on other sites More sharing options...
s_r Posted August 1, 2016 Report Share Posted August 1, 2016 The carbon is now playing music. Running at 20mA the sinks get properly hot. Don't have a temperature sensor on hand but I'd guess it's around 55C give or take. For reference I used 100ohm resistors before the offset instead of 182ohm. The toroid is buzzing on me unfortunately, so I'll have to see about getting that replaced. Aside from that it sounds fantastic. 1 Quote Link to comment Share on other sites More sharing options...
Kerry Posted August 1, 2016 Report Share Posted August 1, 2016 (edited) Congrats Shame about the buzz. Edited August 1, 2016 by Kerry Quote Link to comment Share on other sites More sharing options...
yuk228 Posted August 2, 2016 Report Share Posted August 2, 2016 Hi All, I am just going to start building this and I am preparing the shopping list. I just wonder what are the primary components to be matched in order to achieve better outcome? Thanks Quote Link to comment Share on other sites More sharing options...
nopants Posted August 3, 2016 Report Share Posted August 3, 2016 No matching unless you use k170s at the input Quote Link to comment Share on other sites More sharing options...
gepardcv Posted August 3, 2016 Report Share Posted August 3, 2016 (edited) If you're using the GRHV PSU, you might want to check (1) the bias supply's zeners to get them close to a total of 580V, and (2) get the resistors that control the rail voltages pretty close to each other. Edited August 3, 2016 by gepardcv Quote Link to comment Share on other sites More sharing options...
s_r Posted August 3, 2016 Report Share Posted August 3, 2016 Figured I should share a pic of the carbon all put together. Thanks for the help everyone 10 Quote Link to comment Share on other sites More sharing options...
purk Posted August 3, 2016 Report Share Posted August 3, 2016 Great looking amp Tony! Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted August 3, 2016 Report Share Posted August 3, 2016 That's DIY T2's chassis, isn't it? Nice work. Quote Link to comment Share on other sites More sharing options...
purk Posted August 3, 2016 Report Share Posted August 3, 2016 I think George is sell them now. Superb looking chassis! Quote Link to comment Share on other sites More sharing options...
s_r Posted August 3, 2016 Report Share Posted August 3, 2016 Just now, chinsettawong said: That's DIY T2's chassis, isn't it? Nice work. Aside from different cutouts, they're basically identical. Quote Link to comment Share on other sites More sharing options...
johnwmclean Posted August 4, 2016 Report Share Posted August 4, 2016 Very slick chassis and a great build. Quote Link to comment Share on other sites More sharing options...
Kerry Posted August 4, 2016 Report Share Posted August 4, 2016 Congrats! Quote Link to comment Share on other sites More sharing options...
Laowei Posted August 4, 2016 Report Share Posted August 4, 2016 Very nice build. Any inside shots? 1 Quote Link to comment Share on other sites More sharing options...
wink Posted August 4, 2016 Report Share Posted August 4, 2016 (edited) Great looking build, especially the fact that it has 2 output sockets.... How come there are no builds with a normal bias socket..? Don't normal bias earspeakers deserve the best....? Edited August 4, 2016 by wink Quote Link to comment Share on other sites More sharing options...
astrostar59 Posted August 4, 2016 Report Share Posted August 4, 2016 I like it, the all black look and the horizontal heat sink style. I just picked up my own Carbon yesterday, and having seen the other version with black heat sinks and top and realised black can look as good as all silver. Will come back with listening impressions later, don't want to swamp this forum. Quote Link to comment Share on other sites More sharing options...
nopants Posted August 4, 2016 Report Share Posted August 4, 2016 nothing stopping you from posting it on headfi, this is a build thread after all 6 Quote Link to comment Share on other sites More sharing options...
Dave R Posted August 5, 2016 Report Share Posted August 5, 2016 Although I have a Dynalo mk1 that I got from Birgir which I'm very happy with, rather than get a KGSSHV carbon from him, it will be johnwmclean that'll be building one for me, or part building. Now the reason for that is because after several PM's with John, he suggested I asked my local metal engineer to do the faceplate/enclosure, and in doing that I could have the size and look however I liked best. So after giving it some thought I've gone for the size to be 17"Wx 7"H x 14"D, all approx, but the thing I like the most is the idea I had on how the faceplate will look. ( to my liking that is ) Regarding the faceplate, I was going to have titanium used, but after advice on how difficult it is to work with, I'm going with aluminium, although the volume knob will still probably be titanium. i've yet to ask the engineer, so hopefully he'll do what I'm seeking. There is another thing I'd be after, which is no screws showing anywhere other than the top panel, and even there they'll be countersunk. ? P.S. The only downside with this build, is I won't have the spare money to have it done for sometime, but there's no harm in finding out from my local engineer if he'll do what I'll be after. ? 2 Quote Link to comment Share on other sites More sharing options...
purk Posted August 5, 2016 Report Share Posted August 5, 2016 Great choice for going with John. His builds are unique and always first class. Gotta love his custom chassis! 2 Quote Link to comment Share on other sites More sharing options...
s_r Posted August 6, 2016 Report Share Posted August 6, 2016 On 8/3/2016 at 11:40 PM, Laowei said: Very nice build. Any inside shots? Sure thing. My cable management isn't as beautiful as some of the masters here, but a slight allergy to cable mess does help. 7 Quote Link to comment Share on other sites More sharing options...
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