Joachim Gerhard Filter Buffer for ES9022 - Page 47 - diyAudio
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Old 4th February 2013, 07:55 PM   #461
EUVL is offline EUVL  Europe
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Glad that you spotted the problem, no damage, and one more happy customer who actually did A-B test.




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Old 4th February 2013, 08:23 PM   #462
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Very good that you like the sound.
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Old 4th February 2013, 09:55 PM   #463
shoom is offline shoom  Europe
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''Err, em. Fess up time. I had gnd and + output wrong way round on one channel.''

Hi Fran

Yup we all do stuff like that

Glad that you've had the chance to sort it out.

X2 on your assessment SQ wise

All good
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Old 4th February 2013, 10:49 PM   #464
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Yep. Its more apparent on some tracks than others. Listening for short bursts back and forth also makes it hard to pick up the differences. Listen for a few minutes though and every time you're switching back to the buffer.

Now I have to make the dac and filter into a new chassis, the plank-of-wood chassis ain't gonna work with mains voltages to the Tx!

Fran
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Old 5th February 2013, 03:57 AM   #465
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You can always use batteries.


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Old 10th February 2013, 11:02 AM   #466
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I built a shunt to run my filter - but I'm curious: what is everyone else using?


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Old 10th February 2013, 01:14 PM   #467
syklab is offline syklab  Hong Kong
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Quote:
Originally Posted by woodturner-fran View Post
I built a shunt to run my filter - but I'm curious: what is everyone else using?


Fran
I am using this super reg to power the buffer.

Click the image to open in full size.
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Old 10th February 2013, 01:19 PM   #468
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Not a bit overkilled for consumption of less than 20mA ?




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Old 10th February 2013, 01:21 PM   #469
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Heh heh, hard to stop going bigger with shunts!

Btw, I measured 28mA on each leg.


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Old 10th February 2013, 01:37 PM   #470
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Datasheet spec Idss of BF862 is 10mA~25mA.


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