Low-distortion Audio-range Oscillator - Page 180 - diyAudio
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Old 2nd March 2013, 04:28 AM   #1791
davada is offline davada  Canada
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Interesting. Now if I can come up with 95000 yen I,m in business.
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Old 2nd March 2013, 04:47 AM   #1792
davada is offline davada  Canada
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Default 339a oscillator

This is the 339A at 1Vrms and 1kHz into an EMU0204.
The distortion reads high because there is no suppression of the fundamental.
This is a greater test of the EMU than the oscillator.

It sure is quiet.
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Old 2nd March 2013, 05:49 AM   #1793
1audio is offline 1audio  United States
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I think the EMU0202 uses a Crystal DAC and ADC. I have one and an 0404. The 0404 is better (it uses the AK5394a) but the implementation doesn't meet the same performance that the demo board does. Getting it all working was a chore as well, the drivers did not work as expected and it seems to be discontinued.
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Old 2nd March 2013, 03:39 PM   #1794
davada is offline davada  Canada
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I Have a 1212 on it's way which uses the AK5394a.
I'll do a comparison.
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Old 2nd March 2013, 04:50 PM   #1795
RNMarsh is online now RNMarsh  United States
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Quote:
Originally Posted by davada View Post
Interesting. Now if I can come up with 95000 yen I,m in business.
Thats about 4 dollars and 29 cents, I think. Anyway, it isnt as much as it looks.

The alternative is to use a few more of Viktor's oscillators. Maybe 4 to cover the range and put them in a switch selector box with one output. They are noisier but the harmonics are right down there with the Ag16.

THx-RNMarsh
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Old 2nd March 2013, 05:41 PM   #1796
davada is offline davada  Canada
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Quote:
Originally Posted by RNMarsh View Post
Thats about 4 dollars and 29 cents, I think. Anyway, it isnt as much as it looks.

The alternative is to use a few more of Viktor's oscillators. Maybe 4 to cover the range and put them in a switch selector box with one output. They are noisier but the harmonics are right down there with the Ag16.

THx-RNMarsh
1043.77 Canadian Dollars from Google foreign exchange.

Cheers,
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Old 2nd March 2013, 06:36 PM   #1797
RNMarsh is online now RNMarsh  United States
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Quote:
Originally Posted by davada View Post
1043.77 Canadian Dollars from Google foreign exchange.

Cheers,
Thats down below a new KH. If I can find one, I'll buy it and be done with this aspect of testing for awhile. Know who sells them -- in English?

-RNM
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Old 2nd March 2013, 06:53 PM   #1798
davada is offline davada  Canada
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Originally Posted by RNMarsh View Post
Thats down below a new KH. If I can find one, I'll buy it and be done with this aspect of testing for awhile. Know who sells them -- in English?

-RNM
No. That's the only one that came up in Google.

You won't find many technical people in Japan who don't speak at least some English.
Just send an email.

http://orutika.com/e/detail.php?detail=011945

I'd pursue it but I like building my own.
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Last edited by davada; 2nd March 2013 at 06:56 PM.
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Old 2nd March 2013, 08:41 PM   #1799
RNMarsh is online now RNMarsh  United States
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OK. I'm ordering it now.
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Old 2nd March 2013, 08:51 PM   #1800
1audio is offline 1audio  United States
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There are several variations on the oscillator. The current one is the AG15 and my older one has a completely different number. I doubt there is a difference in performance between them. I saw none between the two I have.
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