5532 bisa langsung tancep dengan OP2134, OPA627 salam, dwa ----- Original Message ----- From: innovdesign2003 To: [email protected] Sent: Wednesday, January 07, 2009 11:19 AM Subject: [ELPOP-Audio] Re: Nge bias OpAmp di Class A & GC Homepage
kang ado, trims tips nya..omong2 semalam baru bersihin lensa sony cdp 950, opamp nya pakai NE553200. yang ini bisa diganti langsung tancep sama opamp apa yah? trims & salam TeguhPS O iya..STK4132 adik ipar saya ganti pot dengan alps green..sampe terheran heran dia he he.. masih ada stok? --- In [email protected], Ado A <unosele...@...> wrote: > > DA,Untuk Gaincloner Newbie bisa jalan2 disini :http://myweb.tiscali.co.uk/nuukspot/decdun/gainclone.htmlMaaf bukan utk Tube mania...hehehe...BTW ada yg udah cobe Trick ini, beneran improove gak soundnya :Biasing Op-amps to class A Well finally replaced the veriable resistor version of my OPA 2604, with descrete value resistors, in this case 10k. The idea is to cause a current drain to the output stages of the opamp, by connecting a resistor to the outputs of both channel and the negative supply. This causes the output stages to operate in class A.So here's what to do .....Get an 8 way dil socket and hold so that the cut out is at the top, in the middle. Twist two 10k resistor legs together and solder to the lower left pin. Connect one lead to the top left pin and the other to the second from the top on the right.As the chip is now running in class A its going to need to rid itself of a lot of excess heat, so you need to rig a heatsink. I used a 15mm > copper pipe and cut a 6mm length, then filed a flat section and super glued to the top of the opa 2604. THe chip is then inserted into the socket and the socket pluged into the PCB.How does this now sound, I'm more weighty performance, richer and more musical. The Denon dcd 920 is now simply stunning and get a new disc first before my other player. I definately consider this mod if your tuning your CDP.Salam,Ado--- Pada Rab, 7/1/09, milen007ebay <milen007e...@...> menulis:Dari: milen007ebay <milen007e...@...>Topik: [ELPOP-Audio] Re: lm1875Kepada: elpop-au...@...: Rabu, 7 Januari, 2009, 10:31 AMThanks Pak Jimmy untuk inputnya. jadi saya rencana mau pake PT utk regulated psu yg voltasenya lebih tinggi dari linear. ada schematic regulated psu yang bagus? yang output -24vdc 0v +24vdc? erwin --- In ELPOP-Audio@ yahoogroups. com, "Jimmy Auw" <milis@> wrote: > > Linear dan Regulated masih diperdebatkan. masing2 ada > jagoannya dan > tergantung aplikasinya juga. > > > > Regulated terkenal bagus dan bersih (akurat). namun karena terlalu bersih, > "katanya" jadi kurang natural. > > > > Linear (Non-Regulated) "katanya" lebih as-is. banyak kaum purist audiophile > lebih seneng jenis ini. entah karena fanatisme atau memang bener2 bagus. > > > > SMPS (Switching) lebih baik dihindari. "katanya" banyak yang punya > pengalaman buruk dengan power supply jenis ini (termasuk saya hehehe). entah > mungkin karena pakenya switching abal2. kalo pake yang bagus mungkin beda. > > > > Pemilihan jenis PSU biasanya tergantung posisinya. ada yang karena suatu > alasan, kita terpaksa harus pake Regulated. mungkin juga karena alasan ttt > (misal space), maka harus pake SMPS. so pick the best aja sesuai kondisi > yang ada. > > > > Thanks. > > > > From: ELPOP-Audio@ yahoogroups. com [mailto:ELPOP-Audio@ yahoogroups. com] On > Behalf Of milen007ebay > Sent: Tuesday, > January 06, 2009 3:23 PM > To: ELPOP-Audio@ yahoogroups. com > Subject: [ELPOP-Audio] Re: lm1875 > > > apakah itu lebih bagus linear, regulated atau smps? thx > > > > Menambah banyak teman sangatlah mudah dan cepat. Undang teman dari Hotmail, Gmail ke Yahoo! Messenger sekarang! http://id.messenger.yahoo.com/invite/ >
