shonne Napisano Februar 2, 2018 Share #23 Napisano Februar 2, 2018 Siroma Zen Link to comment Podeli na ovim sajtovima More sharing options...
NIXIE Napisano Februar 2, 2018 Share #24 Napisano Februar 2, 2018 24 minutes ago, Alexx said: Nije imao dobar USB kabl, inače bi ugradio Šta će sad da radi kad vlasnik otvori paket i vidi da nema USB ulaz? Link to comment Podeli na ovim sajtovima More sharing options...
vinko Napisano Februar 2, 2018 Share #25 Napisano Februar 2, 2018 Pa i ne treba USB ulaz. Dovoljno je da preko trafoa i onih silnih kondenzatora polozi jedan valjani USB kabel, sigurno ce popraviti zvuk. Uz korekciju polozaja bi se sigurno doslo do idealne zvucne slike. Salu na stranu, ovo zaista izgleda vrhunski. Ako moze neki hint koja je fora sa tolikim brojem kondenzatora. Versus dva tri velika... Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 2, 2018 Autor Share #26 Napisano Februar 2, 2018 nije fora stavljas sta imas u ovom slucaju narucilac je imao ovo , to sam i stavio Fata je Fata , al dvaput je dvaput Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 3, 2018 Autor Share #27 Napisano Februar 3, 2018 hifish je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
shonne Napisano Februar 3, 2018 Share #28 Napisano Februar 3, 2018 bezobrazne oznake BL... Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 3, 2018 Autor Share #29 Napisano Februar 3, 2018 Now , few words about THD spectra shaping ; Papa taught us during the years several tricks how to imbalance that perfect Symmetry (ironic , isn’t it …… working principle of amp itself is called Supersymmetry/SUSY , while we are trying to spoil it . Anyway , we want some sugar , and we are getting that with 2nd harmonic above 3rd ; again – Papa’s Lectures – some people prefer that way (Tubelovers?) , while some people prefer dominance of 3rd (Sandworshippers?). Further – we can divide both of these groups by polarity of dominant harmonic- some prefer negative , some prefer positive. What can I do regarding that , except to find how (hardly first one knowing that) and then organize easiest way of doing it …….. If you take a look at LTSpice schematic of amp (third pic from top) , you can see two resistor positions circled in red. These resistors are path to modulation of Aleph CCS-es and their values are directly defining amount of that modulation , thus defining amount of Aleph CCS-es contribution in output signal . So , simple ; disclaimer – my goal is to invoke 2nd , and control it’s polarity and amount : -If these two resistors are same in value , there is greatest amount od symmetry , resulting in zilch 2rd ,dominant 3rd. -If we increase value of said resistor at side of positive output , there is increase of 2nd (and dominance over 3rd) , while our dear 2nd being negative phase, -If we increase value of said resistor at side of negative output , there is increase of 2nd (and dominance over 3rd) , while our dear 2nd being positive phase. That’s it . How it is organized in vivo ? I had idea to introduce sort of already know device among Greedy Boys , called -ZAP (Zen Amount Pot) , but later decided that would be impractical , and probably leading to constant play with , while forgetting enjoyment in music …. so I decided to use pin sockets/or whatever their name is , in said resistor positions , thus allowing easy change of resistors in situ , without involving soldering equipment etc. bnb, hifish and Vix je reagovao/la na ovo 2 1 Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 3, 2018 Autor Share #30 Napisano Februar 3, 2018 Now , if you take a look at Eagle front End schematic and Eagle Front End pcb screenshot (4th and 5th pics from top) said resistor positions are R3 and R53 , with R3 being position of our special interest : My taste dictate R53 being 1K , and R3 being 1K2 ; for anyone else’s taste , all what’s needed are few different resistor values and pincette/tweezers ; just power amp off , pull resistors out (gently,please) and push new one in (gently again , please). After that you can power amp on , or go out for beer and some talk , I don’t care tonko, Vix, hifish and 1 član je reagovao/la na ovo 4 Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 3, 2018 Autor Share #31 Napisano Februar 3, 2018 Few more pics , with lid on , and even with USB stick as size reference thingie: Some technical stuff: -Donuts : I ordered 900VA made on 1K2VA cores ; later -when actual winder guy itself contacted me to confirm few things , he said – do not worry , it’ll be 0.9T … they’re having static shield and outer tape shield . -Bridges are Big. -Each rail filter consisting of 90mF-0R11-90mF , resulting in 23V5dc. -Iq smidge above 7A , resulting in 100W/8R , 80W/4R , Winter blessing being in range of 360W per box. -Relative offset wandering some 25-30mV from stone cold to hysterically warm (top of sinks being 17C above ambient). -Absolute offset frozen around -350mV , right from powering up , all the way to hysterically warm. -Iq change around -4% , from stone cold to hysterically warm. -No power on thump , while power off thump is no more than small plop , even on my LC1B , they being sensitive on air flow induced by cat crossing next yard …… -Weight – smidge above 60kg. And yes – there is additional pair of drek binding posts at back , accepting any Remote Power On/Off voltage from 10 to 35Vdc, polarity irrelevant. hifish, Vix and Fukushima je reagovao/la na ovo 3 Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 3, 2018 Autor Share #32 Napisano Februar 3, 2018 I forgot to write SuperSymmetry/SUSY anywhere on pcbs , but I didn’t forgot what’s more important: Did I said that they’re Gorgeously sounding ? Vix je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
John Coltrane Napisano Februar 3, 2018 Share #33 Napisano Februar 3, 2018 plan, način izrade, pedanterija za najsitniji detalj ... (ne volim A class jer skupo za moje gedžave uši) ali ovo je prelepo pogotovo cajgeri... mislim, šetanije armonika po želji uglavnom sta reći koju posluku porati... Zen, da si živ i zdrav i da napraviš još brdo ovaki skalamerija Aleks je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 9, 2018 Autor Share #34 Napisano Februar 9, 2018 ovo dosad se sve odnosilo na iteraciju sa 10 mosfeta po kvadrantu , tzv. 10-deep to znaci jedna velika pcb za dva kvadranta , za sva cetiri trebaju dve pcb , svaka ide na jedan bok , dakle dve kutije za stereo = monoblok pristup evo i iteracije za manji amp , gde ide jedna pokazana OS pcb po kanalu , dakle 5 mofeta po kvadrantu = 5-deep jedna pcb po kanalu , dakle moguce je u jedno vece kuciste strpati stereo amp podrazumeva se prilagodjenje source otpornika i optimizacija mirne struje ... Link to comment Podeli na ovim sajtovima More sharing options...
ninja Napisano Februar 9, 2018 Share #35 Napisano Februar 9, 2018 Je li konačno otišlo u tuđinu? Ko li je to iznosio ne bih mu bio u kozi Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 9, 2018 Autor Share #36 Napisano Februar 9, 2018 putuje prekosutra kurir je stigao ninja je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
shonne Napisano Februar 9, 2018 Share #37 Napisano Februar 9, 2018 49 minutes ago, Zen Mod said: ovo dosad se sve odnosilo na iteraciju sa 10 mosfeta po kvadrantu , tzv. 10-deep to znaci jedna velika pcb za dva kvadranta , za sva cetiri trebaju dve pcb , svaka ide na jedan bok , dakle dve kutije za stereo = monoblok pristup evo i iteracije za manji amp , gde ide jedna pokazana OS pcb po kanalu , dakle 5 mofeta po kvadrantu = 5-deep jedna pcb po kanalu , dakle moguce je u jedno vece kuciste strpati stereo amp podrazumeva se prilagodjenje source otpornika i optimizacija mirne struje ... optimizovano, mirna struja...o kojoj W disipaciji se prica, okvirno po kanalu? Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 9, 2018 Autor Share #38 Napisano Februar 9, 2018 koliko god hladnjaci mogu da podnesu recimo da je 20-ak Vdc za rails sasvim dovoljno jer je bridged pa dobijas duplu amplitudu , al' zato moras nabrijavati Iq Link to comment Podeli na ovim sajtovima More sharing options...
mrcelavi Napisano Februar 9, 2018 Share #39 Napisano Februar 9, 2018 Bote život, slušam MALIA & BORIS BLANK na 20kg A klasi i zamišljam kako li to tek izgleda na ovim mrcinama od 60 kila. E puste pare. Bravo guru, bravo! Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 9, 2018 Autor Share #40 Napisano Februar 9, 2018 aj ne zakijavaj , nego daj jos porna tamo u tvojoj temi mrcelavi je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
mrcelavi Napisano Februar 9, 2018 Share #41 Napisano Februar 9, 2018 Inspirišes ljude nema šta, važi ubacujem. Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 12, 2018 Autor Share #42 Napisano Februar 12, 2018 ampovi su u EU , do sad verovatno vec stigli kuci shonne and Beli je reagovao/la na ovo 2 Link to comment Podeli na ovim sajtovima More sharing options...
Leonardo Napisano Februar 12, 2018 Share #43 Napisano Februar 12, 2018 Gde si im Ribu nalepio? Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Februar 12, 2018 Autor Share #44 Napisano Februar 12, 2018 mislim ce napravi malu okruglu metalnu vinjetu i zalepi na kruzic na metru malo , lepo a nazad na amp ce dodje vec neka nalepnica sa natpisom , pravi font edit: kad covek zna znanje , pa postavlja pitanja iz struke hifish and Leonardo je reagovao/la na ovo 1 1 Link to comment Podeli na ovim sajtovima More sharing options...
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