- #46 [254mm], 19-05-21 23:04多謝介紹, OPA445, 耐壓高達 +/- 45V DC, 可惜只是單 IC
- #45 [41450686], 19-05-21 22:31Search opa445 in taobao. It is cheap.
- #44 [cello], 19-05-21 21:43我都有D鐵殼古懂
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- #43 [254mm], 19-05-21 13:59yes, it is a good idea, but 而家年纪大了,沒閑情去攪咁多野′
- #42 [banny2seng], 19-05-21 11:49點解唔改電源成+-15V?大把極品IC可用。
- #41 [254mm], 19-05-20 22:26是 2604 的芯片才是. 真係仲有無其它 IC 可行 +/- 24 V 的, 望高人指點
- #40 [254mm], 19-05-20 21:58我用 OPA2604 陶瓷, 若 廠話冇出過陶瓷版本, 呢粒 IC 可行 +/- 24 V DC, 我架機用 2604 就係行 +/- 24V 的, 唯一想到要做假, 便是用 2606 的芯片再啤陶瓷, 才做到 耐壓 +/- 24V DC.
- #39 [kk6666], 19-05-20 19:15
- #38 [CKKeung], 17-01-06 10:43http://www.partsconnexion.com/opamp_dexa.html?utm_source=getresponse&utm_medium=email&utm_campaign=1express&utm_content=pcX%E2%80%99s+2017+New+Years+Event%3A+40%25+Off+CAMBRIDGE+AUDIO+Azur+851A+Integrated+Amp+%26+DacMagic+Plus+Preamp%3B+25%25+Off+TRU-LIFT+Automatic+Tonearm+Lifter%3B+50%25+Off+Acoustic+Zen+Cables+-+Limited+Quantity+Remaining
http://www.newclassd.com/index.php?page=121&hv=1
http://www.newclassd.com/index.php?page=123&hv=1 - #37 [klou], 17-01-06 00:00Many thanks 41450686 ching
There are 3 OPA2604 op amps at the analogue circuit, do you know how this is working in a stereo circuit? If I try replacing them , do I need to change all three of them or just the two in front.
Many thanks in advance - #36 [41450686], 16-12-27 01:05I think the AD chipset is the balance line driver, check the pinout match the drv134 or not. If match you can upgrade. The DAC if possible change to CS43122 same pinout, the sound is better than CS4398 but hard to find a good chip now.
- #35 [254mm], 16-12-26 23:31get them from RS
- #34 [254mm], 16-12-26 23:31look for Opamp ICs from Anolog Device which are more musical and natural than BBs
- #33 [klou], 16-12-26 23:07Any good op amps suitable for this CD which has XLR output?
and where can I get them ?
Many thanks for your advice in advance - #32 [254mm], 16-12-26 22:54OK then
- #31 [klou], 16-12-26 22:50It's only + - 12V. I think most Op Amp should be able to handle it.
- #30 [klou], 16-12-26 19:51OK, will try it out tonight. I think I can manage a change of an IC on an IC socket.
- #29 [254mm], 16-12-26 19:11Use DC Voltage Tester, Black Probe attach to Ground, Red Probe Check Pin 4 & 8 of OPA2604, see the result, you don't even know how to check the voltage, how can you mode your CD player, you will probably damage it instead!!
最後修改時間: 2016-12-26 19:12:27 - #28 [klou], 16-12-26 18:56Hi 254mm
How to measure the voltage? - #27 [254mm], 16-12-24 18:15AD T634 cannot be found in Googles!!
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