kevin gilmore Posted April 16, 2011 Report Share Posted April 16, 2011 Actually in this case if the unregulated primaries are where they should be (about 440 vdc under load) then running the outputs at +/-350 actually causes the pass fet to dissipate more power than if it was running at +/-400. Reason is that most of the power goes into the output tubes which are driven from a constant current source that will change very little between 350 and 400 volts. Suggest you measure the unregulated B+ under load to see if you can swap out the zeners for the higher voltage. Running the power supply unregulated is not really a good thing. BH and BHSE amplifiers were designed to run on +/-400 volts. T2 runs on +/-500 volts. kgsshv can run on 450 volts, or 500 volts. Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted April 16, 2011 Report Share Posted April 16, 2011 I'm not sure I agree. The extra heat will go into the tubes, sure, but that will raise the ambient temperature considerably. Look how the tubes are recessed. Agreed that the pass device takes a bit of abuse as is, but these things seem to run on the brink of instability as getting rid of all that heat is hard. Granted, there is a lot of ventilation, but my experience what happens is that the tubes heat up the MOSFETs and the ambient temperature of the heat sink and things seem to just cook from there. Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted April 16, 2011 Report Share Posted April 16, 2011 I was commenting on the heat from the power supply. Clearly the current sources and the tubes get hotter at higher voltages. The power supply heatsinks are slightly undersized and might be able to be replaced with the 2.5 inch versions. The current sources have plenty of heatsink. Most of the tube inside the chassis definitely raises the inside temperature a bunch. Quote Link to comment Share on other sites More sharing options...
Augsburger Posted April 16, 2011 Report Share Posted April 16, 2011 I'm primarily referring to Augsburger's response above and Grawks plastic chassis response. There have definitely been some helpful posts in the thread, it just went downhill when the seller was brought up. Augsburger's response was in fact a question and only that. If you felt hostility from a question that quite well was rhetorical in nature then perhaps you need to rethink what you are doing..... or maybe not. Hmmmm. Quote Link to comment Share on other sites More sharing options...
Augsburger Posted April 16, 2011 Report Share Posted April 16, 2011 (edited) : Edited April 16, 2011 by Augsburger Quote Link to comment Share on other sites More sharing options...
grawk Posted April 16, 2011 Report Share Posted April 16, 2011 And I was just referring to the fact that you used to go by the name "trevornetwork" and were responsible for some amazingly horrific amp builds. Quote Link to comment Share on other sites More sharing options...
alex_o rules Posted April 16, 2011 Author Report Share Posted April 16, 2011 Ok- this is annoying me. Kevin and I exchanged a few PMs and he had mentioned the 'trevornetwork' thing, and that I should do some searching on HF. I decided to do so, and I think the only thing he and I have in common is our name. We don't even live in the same country! Quote Link to comment Share on other sites More sharing options...
The Monkey Posted April 16, 2011 Report Share Posted April 16, 2011 It's annoying me too. Quote Link to comment Share on other sites More sharing options...
Fitz Posted April 16, 2011 Report Share Posted April 16, 2011 Yes, I suppose it would be annoying that people can still figure out who you are. Quote Link to comment Share on other sites More sharing options...
alex_o rules Posted April 16, 2011 Author Report Share Posted April 16, 2011 ?! Ok. I am a 35 year old guy who has lived in GA for quite some time and grew up near Buffalo. I mean, sure Buffalo is near Canada and all, but this is pretty insane. Quote Link to comment Share on other sites More sharing options...
boomana Posted April 16, 2011 Report Share Posted April 16, 2011 Trevor W..... Work Experience ArcSight / Sales Engineer 2007 - Present Originally Based out of Ottawa, Ontario. Currently in Atlanta, GA. Fortinet, Inc. / Pre / Post Sales Training 2004 - 2007 Based out of Vancouver, BC and Ottawa, Ontario Stop playing stupid. Quote Link to comment Share on other sites More sharing options...
recstar24 Posted April 16, 2011 Report Share Posted April 16, 2011 Vicki FTMFW Quote Link to comment Share on other sites More sharing options...
morphsci Posted April 16, 2011 Report Share Posted April 16, 2011 Ok- this is annoying me. Kevin and I exchanged a few PMs and he had mentioned the 'trevornetwork' thing, and that I should do some searching on HF. I decided to do so, and I think the only thing he and I have in common is our name. We don't even live in the same country! ?! Ok. I am a 35 year old guy who has lived in GA for quite some time and grew up near Buffalo. I mean, sure Buffalo is near Canada and all, but this is pretty insane. Trevor W..... Work Experience ArcSight / Sales Engineer 2007 - Present Originally Based out of Ottawa, Ontario. Currently in Atlanta, GA. Fortinet, Inc. / Pre / Post Sales Training 2004 - 2007 Based out of Vancouver, BC and Ottawa, Ontario Stop playing stupid. Oh what a tangled web we weave, When first we practise to deceive! - Sir Walter Scott. And that's not crap! Quote Link to comment Share on other sites More sharing options...
Voltron Posted April 16, 2011 Report Share Posted April 16, 2011 Trevor W..... Work Experience ArcSight / Sales Engineer 2007 - Present Originally Based out of Ottawa, Ontario. Currently in Atlanta, GA. Fortinet, Inc. / Pre / Post Sales Training 2004 - 2007 Based out of Vancouver, BC and Ottawa, Ontario Stop playing stupid. Nice! Quote Link to comment Share on other sites More sharing options...
blubliss Posted April 16, 2011 Report Share Posted April 16, 2011 Quote Link to comment Share on other sites More sharing options...
alex_o rules Posted April 16, 2011 Author Report Share Posted April 16, 2011 *g* yeah, I did some stupid stuff back in Van. My intentions were good, but it is what it is. Life's changed a great deal in that five years. Shame on me. Quote Link to comment Share on other sites More sharing options...
jp11801 Posted April 16, 2011 Report Share Posted April 16, 2011 (edited) why lie through your teeth and claim innocence and annoyance? How about you just slink out of here and also stay off the other place as well, you've burned your bridge. Edited April 16, 2011 by jp11801 Quote Link to comment Share on other sites More sharing options...
Voltron Posted April 16, 2011 Report Share Posted April 16, 2011 *g* yeah, I did some stupid stuff back in Van. My intentions were good, but it is what it is. Life's changed a great deal in that five years. Shame on me. Quote Link to comment Share on other sites More sharing options...
n_maher Posted April 16, 2011 Report Share Posted April 16, 2011 How is that whole "putting justin out of business" going? Quote Link to comment Share on other sites More sharing options...
Beefy Posted April 16, 2011 Report Share Posted April 16, 2011 (edited) This little turd is trevornetwork? Holy shit, I feel dirty...... I gave him the FPE files from my Exstata build, because he seemed like a genuinely helpless newbie on Head-Fi :angry: Edited April 16, 2011 by Beefy Quote Link to comment Share on other sites More sharing options...
Aura Posted April 16, 2011 Report Share Posted April 16, 2011 *g* yeah, I did some stupid stuff back in Van. My intentions were good, but it is what it is. Oh boo-fucking-hoo you deceitful little bastard. As JP said, get the fuck out of here. Quote Link to comment Share on other sites More sharing options...
The Monkey Posted April 16, 2011 Report Share Posted April 16, 2011 I believe in second chances. I also believe that when you use your second chance to show that you are the same old shitbag you've always been, well, then it's time to head on down the road. Quote Link to comment Share on other sites More sharing options...
monsieurguzel Posted April 17, 2011 Report Share Posted April 17, 2011 (edited) deceitful bastard! Edited April 17, 2011 by monsieurguzel Quote Link to comment Share on other sites More sharing options...
HeadphoneAddict Posted April 17, 2011 Report Share Posted April 17, 2011 (edited) This got interesting really quickly. Anyway, I wish I'd had a chance to buy Naaman's KGBH the first time around, but it was gone before I ever knew it was for sale. At least I got his O2 Mk1... Edited April 17, 2011 by HeadphoneAddict Quote Link to comment Share on other sites More sharing options...
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