huangyong 0 Report post Posted August 6, 2004 (edited) This amp is using David Lin's ( from AndAudio ) LC-King PCB (free) to build. Good work by DIGI01. I got my PCB from David Lin from Taiwan then sent to DIGI01 to ask him to custom build one for me using premiun parts. High P-P ratio..hehe here is the pics he sent me, the amp will arrive in 1 month time... but transport a bit ex... COMPLETE AMP: Porns : Edited August 7, 2004 by huangyong Share this post Link to post Share on other sites
huangyong 0 Report post Posted August 6, 2004 Here is the free PCB i got from David Lin, a really nice DIY Master in Taiwan. Share this post Link to post Share on other sites
digi01 0 Report post Posted August 6, 2004 main boards details,the chips that I use is AD823+TL072. Share this post Link to post Share on other sites
bpribadi 0 Report post Posted August 6, 2004 Are those Q1 - Q4 used to increase the output current ? Pretty amp Share this post Link to post Share on other sites
huangyong 0 Report post Posted August 7, 2004 yes, Q1-Q4 is to increse the output current. something like SDS amp, just with extra DC servo;so it can be modified to omit all the capacitors in the signal path yet with a very low DC (~3mV) at the output. The designer claims that it can output 5W-10W into 8ohm transducer (I am not very sure, remember read it somewhere ). This amp is build to drive AKG K1000, but i do not have one . Share this post Link to post Share on other sites
huangyong 0 Report post Posted August 7, 2004 Schematic Share this post Link to post Share on other sites
bpribadi 0 Report post Posted August 7, 2004 Thanks Huangyong! Share this post Link to post Share on other sites
sayhitojason 0 Report post Posted October 29, 2004 Hi Huangyong, may I know how much it costs to build the amp? Thanks. Share this post Link to post Share on other sites
papaya86 0 Report post Posted October 29, 2004 http://www.echoloft.com/cgi-bin/buysell/Ya...&num=1094109851 built by digi01 too im having one fixed up by digi01 too with a couple of upgrades on its components Share this post Link to post Share on other sites
digi01 0 Report post Posted November 6, 2004 papaya86,your high version lcking is almost finished.I am glad post some layout pic 1,top view Share this post Link to post Share on other sites
digi01 0 Report post Posted November 6, 2004 the power supply parts that I used is my regulator pcb. Share this post Link to post Share on other sites
digi01 0 Report post Posted November 6, 2004 OPA637BP setting up Share this post Link to post Share on other sites
papaya86 0 Report post Posted November 6, 2004 (edited) can post pics of the casing, side view etc, i guess the guys here will be curious on how this amp looks, and please do a mini review, would be reli reli glad Edited November 6, 2004 by papaya86 Share this post Link to post Share on other sites
heady 0 Report post Posted November 6, 2004 digi, re: power supply pic, the two transistors bolted to the heat sink have a blue separator. What is this light blue material? Thanks, Share this post Link to post Share on other sites
aaa 0 Report post Posted November 6, 2004 What is this light blue material? from the lable on PCB they should be resistors, may be from another series. Share this post Link to post Share on other sites
