bpribadi 0 Report post Posted September 30, 2004 (edited) Thanks to Huangyong about the 'lobang' in China that can give us good price for those Op-Amps. He has bought some PCB from him with no problem. But I'm still prefer to buy in small quantity for the first time So for those who interested with the following Audio Op-Amps can reply this thread accordingly. If there is enough interest, I would say about 10 Op-Amps, we can arrange a group buy. ALL PRICEs are estimated price in SGD, included with estimated shipping cost. So the final price might be slightly less or more (they quote me in USD). I'm not going to make any profit from this, so we will share the shipping cost accordingly. For Single Op-Amps (1 Op-Amp in the single 8 pin PDIP IC): OPA627BP : S$ 20.- OPA637BP : S$ 23.- For Dual Op-Amps (2 Op-Amp in the single 8 pin PDIP IC): OPA2227PA and OPA2228PA : S$ 5.- They will come back to me with the prices for AD8065 and AD8066. If you are interested, please reply with: Op-Amp Model : Quantity : Regards, Bram Edited September 30, 2004 by bpribadi Share this post Link to post Share on other sites
heady 0 Report post Posted September 30, 2004 Wow! I am go for one OPA627 and two OPA637. Plus one OPA2228. Can't wait to find out price of the AD chips. Hey, we DIYers, need all the savings we can get. Thanks Bram. Share this post Link to post Share on other sites
huangyong 0 Report post Posted September 30, 2004 Good stuff at good price...... Share this post Link to post Share on other sites
bzy83 0 Report post Posted September 30, 2004 OPA637BP : S$ 23.- i want 2 of this Share this post Link to post Share on other sites
bzy83 0 Report post Posted September 30, 2004 hey ppl, i found a place offers these price : all listed in RMB 单运放: OPA627AP 65元/片 OPA627BP 85元/片 OPA627AU 50元/片 OPA637AP 60元/片 OPA637BP 75元/片 OPA637AU 50元/片 OPA227P 30元/片 OPA277P 25元/片 OPA134AP 20元/片 OPA604AP 25元/片 NE5534AP 6元/片 OPA111BM 200元/片 OPA111AM 100元/片 双运放: OPA2111KP 50元/片 OPA2227P 35元/片 OPA2277P 30元/片 OPA2134PA 20元/片 OPA2604PA 25元/片 缓冲: BUF634P 25元/片 BUF634T 35元/片 cheaper ha ~ Share this post Link to post Share on other sites
huangyong 0 Report post Posted September 30, 2004 Cool Price. bzy83, are you able to help us to get those opamps?? (purchase and shipping) Share this post Link to post Share on other sites
bzy83 0 Report post Posted September 30, 2004 guys, i just found out that you can get those opamps from TI for free~!!!!!!! you just go to www.ti.com and search for the opamp you want and then click sample request and make your order, you can order 8 different types of opamps and 5 of each~!! i just made the order , dont know how long will they reach my house Share this post Link to post Share on other sites
bzy83 0 Report post Posted September 30, 2004 (edited) however if you want large quantity of opamps you need to buy... i can help you to purchase these opamps from china. the prices are listed in my previous reply. these price are not include shipping cost. i will not make profit from the deal, however you can pay me money if you want Edited September 30, 2004 by bzy83 Share this post Link to post Share on other sites
huangyong 0 Report post Posted September 30, 2004 For that kind of price, we can build PPA at very affordable price. btw, how much is the PPA PCB board? Share this post Link to post Share on other sites
bpribadi 0 Report post Posted October 1, 2004 Thanks a lot bzy83 !!! I've ordered my samples Since we can order it for free, let's close this thread, and continue the discussion in DIY forum. "THIS THREAD IS CLOSED" Share this post Link to post Share on other sites