Wolfson WM8740 DIR9001 PCM2706 DIY DAC - Page 2 - diyAudio
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Old 24th April 2011, 11:29 AM   #11
erin is offline erin  Australia
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See the attached document for the different series of caps that Elna makes.
Or download the Elna catalog here
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File Type: jpg Elna Capacitor series.JPG (369.7 KB, 1792 views)

Last edited by erin; 24th April 2011 at 11:40 AM.
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Old 24th April 2011, 12:11 PM   #12
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Quote:
Originally Posted by erin View Post
Can you possibly qualify this statement with a photo, or a reason for this comment? I am curious to know about Elna fakes. I didn't realise there were Elna fakes. Thanks.
I had fake motorola transistors before, also Duracell NiMh batteries, ON semi stabilizers, those are already in dumpster. You can read net throughout about forging semiconductors and other parts in China.
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Old 24th April 2011, 12:15 PM   #13
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These look different, don't they?
Welborne Labs ELNA Capacitors
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Old 24th April 2011, 12:46 PM   #14
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BTW, I just found out that On Semi 7808, 7912, 7812 are counterfeits as well.
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Old 24th April 2011, 03:23 PM   #15
erin is offline erin  Australia
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They look like old beaten up Cerafine, and the legs are thick like Cerafine. The only way to tell would be to listen to them in circuit.
I'm well aware of counterfeit transistors.
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Old 24th April 2011, 03:55 PM   #16
UrSv is offline UrSv  Sweden
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Originally Posted by dtses View Post
Already found 3 dedicated transformers home that could be used with it, however couldn't find any decent chassis, does anybody have one or know the place where it could be bought?
This?:

Chassis suggestion
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Old 24th April 2011, 05:57 PM   #17
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thanks! that could be a good option, though not cheap taking into account dac's price.

btw, what's the point in making fake LM7808, 7912, 7812?!
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Old 24th April 2011, 10:27 PM   #18
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MC7808, here you go. I could quite easily separate the back side just by my fingers. No tools. All parts look suspicious to me. Lets believe Chinese don't have enough know how and technology to counterfeit DACs like WM8740 for now.
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Old 27th April 2011, 04:34 PM   #19
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finished mine, works perfectly! Unfortunately don't have any CD player currently with digital output to compare this DAC with my good old heavily moded Philips CD350.

btw, tried to to separate back of my rectifiers and could affirm that it's quite difficult only by the fingers. Anyway, I've changed them to be safe

will post some pics once get a camera.
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Old 29th April 2011, 03:55 PM   #20
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