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Zen Mod

babelfish-xj-or-jx-or-whatever

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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.

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I forgot to write SuperSymmetry/SUSY anywhere on pcbs , but I didn’t forgot what’s more important:

 

IMG_6738-e1517680055937-300x165.jpg

 

 

Did I said that they’re Gorgeously sounding ?

 

tworats.gif

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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 :crazyrocker:

uglavnom sta reći koju posluku porati... 

Zen, da si živ i zdrav i da napraviš još brdo ovaki skalamerija :BeerMugCheers:

 

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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 ...

 

Babelfish-XJ-FE-5-deep.jpg

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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 ...

 

Babelfish-XJ-FE-5-deep.jpg

optimizovano, mirna struja...o kojoj W disipaciji se prica, okvirno po kanalu?

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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

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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 :cheers:

 

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