bata bane

Sigurno moze da ih potera, ali sta se desava sa frekventim odzivom pojacala pri opterecenjima od npr. 0.5 Ohm-a... i dali i dalje fercera u A klsi ili je zagazio u AB itd... to mudre glave bolje znaju od mene...

Ako mi dozvolite dodao bih i ja....trenutna najslabija karika za DD zvucnik je nedostatak "adekvatnog" pojacala za nj... svojevremeno sam napravio pojacalo za te drajvere i to za 0.2 Ohma...tada sam prvi put i cuo Ge tranzistor i zasto bas on...ali svi koji prave te drangulije(ampove)znaju je da je dalek put od "napravljenog" do "svira do ja..." i da treba puno vremena i truda posvetiti tometrenutno, mislim da svi dd zvucnici koji se slusaju nemaju amplifikaciju koju zasluzjuju, oni mogu mnogo ,mnogo bolje a za to mora mnogo da se radi...

Mozda bih ja mogao da pojasnim kako izgleda kalem...jer mene je to malo vise zanimalo, bas iz razloga sto svi spominju kalem, niko ne zna kako radi...e paSustinski, kod tog nacina motanja broj namotaja nije obrnuto proporcionalan sa strujom koja protice kroz njega...sto znaci npr. da zvucnik od 0.1 ohm moze da ima mnogo vise namotaja nego drajver od 8 ili 16ohm-a, sto to mu omogucava neverovatnu kontrolu membrane kad se to stavi u formuli F kod tog kalema je drasticno veci prilicno je nezgodno za objasnjavane kako izgleda sam kalem uzmite papirnu traku sirine npr 3cm, presavite je na svaki cm, tako da dobijete papirnu traku sirine 1 cm....a zatim obmotajte to oko prstavaljda sam pomogao

druze, to je moje iskustvo, ali to ne znaci da sam u pravu kad se vidimo, se ispricamo natenane...rakijca offcours

pa nije ni cudoo sto je izbacen iz upotrebe, on se samo zove tranzistor, radi slicno, ali ne isto kao Si germanijum curi! pa zbog toga (po recima konstruktora)kao da postoji "virtuelni" otpornik baza-emitorto je caka...nadam se da je objasnjenje zadovoljavajuce

....elem a na ulazu jedam LDR i bog da te vidi sto se tice Ge tranzistora za preamp, oni tu nemaju sta da traze i to je mesto gde uglanom konstruktor zazali zasto je to krenuo da pravi... mala ulazna otpornost, mali gain....lampa i fetovi ga tu sisaju uzduz i popreko, ali kad se trazi amperi, e to je vec druga pricica ...eventualno da oboji zvuk u kombinaciji sa nekim Jfetom( govorimo o varijanti samo za preamp), AC127 i AC128 puno koriste za gitarske pedale da "oboje" zvuk...za sad se jako dobro pokazao AC 141K, kao ulazni stepen, koji izmedju ostalog neostetljiv na temperaturu(preko 50C) za razliku od drugih AC tranzistorasto se tice CCS, ja sam uvek da se proba...medjutim ja nisam elektronicar i ne bih umeo to sam da napravim...ubedjen sam da bi radilo jako dobro

danas mi je jedan ljubazan gospodin poslao na mail schemu...pa kao sto sam obecao

posto nemam program za crtanje scema, a mrzi me dok ne nadjem ko ce, ovako...napajanje 32Vpromenjene su vrednosti ulaznih otpornika i AC tranzistor(127 u 141K)...820-20k10k-210k100-33820-330 i 1K-330otpornici 4Ohm 50W stavljeno je 2x 4.7Ohm 100W valjda nisam pogresio

i mi se nadamo vec neko vreme ja sam uvek za sto manji broj komponeti, nazalost nije postojala varijanta da se izvede sa dva tranzistora a da bude sva Ge...kad je moj drugar ovo pravio, probao je za pocetak samo sa starim BC tranzdom i potero je rusa bez problema...bilo bi lepo probati samo sa nekim jfet i rusom...a svrbi me i varijanta lampa i Ge, ali u toj varijanti bi morao da osrtane AD162

da ne bude zabune....objavljena shema je od stare verzije SEGA, cim otvorim pojacalo i isprepisujem sve objavljujem omaaa!promene se uglavnom ticu 1) ulaznog dela sa AC128 koji je zamenjen sa AC141K2) povecana je vrednost otpornika

Thanks M, probably missed that part, in my english class

...ako je to taj, onda bi trebalo da stoji prefiks THE baraba, jer sve ostalo je uvreda za njega ...nas mnogovoljeni "M"

...for elderly people who read this thred, the close up plan of the secret lubricant used to emphasise wood structure in front panel

...and the story goes on, chapter IV "the front side" night after night, usualy sleepless what to do...you now how important front side is for overall looks...it gives a final character to your creation... ...at first it was Al, pure and masiv at least 10mm panel with minimalsitic on/off touch buton(with red LED, oh it is a must),handels GPS,SMS, touch control, mind reader and all in mat black coulor...but somewhere in my mind I was allready tired and wanted to finish a soon as posible, this would reguire a lot of work and money...in one pain in the ... ...lackaly, my neibourgh(hope spells this way)had exelent wood panel, dry as a black powder...and also very skilled with tools...not to mention that it was all for free...so as I am a representativ of Serbian nationality I went for that solution...somehow it looked the best at that moment... so the blocks wer cut, grinded with sand paper, holes driled for butons(with red LED, must be) and after treatin with a top secret lubricant it loked like this...

potpuno je u pravu, ali moras biti uporan...odlemis ovo, zalemis ono,pa opet odlemis ono , zalemis ono i kad mislis da je to to, e onda opet i tako jedno sto do stopedest puta i onda ti se uvo navikne i uopste ti ne smeta sto ne svira dobro kod mene ste uvek dobrodosli, ne postoji ni jedno opravdanje da se ne popije nesto dobro a usput ako ima vremena i da se poslusa nesto i da se pohvali ko ima bolje i vece

....the twins

...and this side

somehow it reminds me on a gadget with a digital display that goes BOOOM...with a cloud mushrom at the end of the movie

forget to mention that all work was done with highest production standards and supervison of quality managment

...or this, with connected inputs etc...

...when finished it looked like this

so again screving holes...the next picture is assosiated with pain, blood and tears... the mathematics goes like this... every heatsink has 12 holes, 4 of them have 48, every hole have to be done with 3 step tool so it about 144...and evry tool bit during driling should be cleaned 2-3 thimes before goes all the way down the hole....so I will remember number 432...

...pa kazem ti ja, germanijum ima dusu... ...a sad kad krenu da me pljuju -----finaly I decided to use Al...all parts are 5mm thick, and hand machined...heard Leonardo was wery busy and I was in frenzy and needed it fast. gentleman from MOC-Masinski Obrazovni Centar was wery happy to do that for me....so when you look at it you can see it is not done whith CNC but I am ok whith it, it is just fine left piece goes down, midle one goes on the top, an the right one goes on the back of heatsinks

...at this time I still didnt know what would be a final solution for conecting the heatsinks together, for some time was also thinking about conecting these four like Pass did with his heatsink cubes... :clapping:but because of probable back problems I decidet to go with monoblocs afterall :dubbio:it is good that heatsinks could stand by themself without support and that gave me a good picture how would it look like...

samo sam tebe cekao