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In the Forum: Melquiades Amplifier
In the Thread: Planning my DSET
Post Subject: It would be fun to visit you but I never in AU....Posted by Romy the Cat on: 1/4/2019
 anthony wrote:
To mirror your obsession, but not as the instigator of the project, rather as the duplicator, it has been my plan for some time to take off all of January to get my Melquiades/Macondo installed in my room.  Being self-employed with too many clients to keep satisfied that is not really going to happen but I do plan to be able to operate with the emphasis towards leisure rather than work for the next couple of months as a compromise, perhaps something like week-on week-off, but something at least very flexiblle.  My wife is with me completely in the desire to have this project finished, but I suspect for slightly different reasons than I. 
I was also self-employed, running consulting s-corporation and taking 6 month off I once calculated how much money I lost turning down some lucrative contracts. It was a lot! Well, it was juts money… Saying that I need to admit that if I were married that time I do not think I would be able to pull it off. My compliments to you wife patience
 anthony wrote:
I listened exclusively to Bruckner symphonies for almost 6 days straight (I discovered Celibidache and was transfixed by the slow phrasing in particular of the 8th).    
Now we are taking!!! Celibidache certainly would do it. A few years back I caught live performance of the 8th in London with Vienna and late Mazel. They did a very nice slow version of adagio, not as slow as Celibidache did during his slower concerts but still quite slow but Mazel did some absolutely mind boggling poses and some amassing prolonging phrases that went against all rules of physics. That all make the performance absolutely beyond believe. If you like very slow interpretation, like I do, then you might start to listen some Barbirolli Mahler…
 anthony wrote:
..the closer I come to a realisation of my efforts the more I understand and appreciate just how colossal yours has been. 
Yep, tell it to my wife… :-)
 Anthony wrote:
It's a 4 minute startup protocol.  It briefly draws an amp when plugged into the wall and the Services LPS fills its capacitors, then settles down to virtually nothing, less than 20w.  Then I hit the power foot pedal and the AC filaments/heaters are all lit up and being direct AC there are no caps or other electronics so not much of a spike.  The bias and 1st Stages are powered 45 seconds later (just past 1m on the graph) and there is a 5A spike as the power supply caps are filled.  That sits at about 150w until three minutes later the DHT, 2nd Stages and Single Stages power supplies are energized.  The DMM logs once a second and managed to capture about 11A, which is as much as the mains supply is rated, maybe a little more...perhaps I should put in a soft start.  Anyway, after that the amp sits on a pretty neat 400W power draw at idle.  Being Class A that should be where it stays even when playing music. So, 400 watts power draw to light up a combined total of 30w-33w of output power.
It is not the numbers that I got. I had if I member correctly 330W draw after the amp hit the cruse temperature, the I initial inrush of current was I think about 10A and I use 8A slow blow fuse for the whole amp. The 4 minute startup protocol is kind of slow but it for sure protect the amp's parts well. 
 

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