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Old 14th February 2012, 02:10 PM   #571
EUVL is offline EUVL  Europe
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Keep us posted.


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Old 14th February 2012, 02:55 PM   #572
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You bet
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Old 5th March 2012, 09:50 AM   #573
ryanj is offline ryanj  Australia
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Default Finished

Hi Patrick and everyone.

Here is a photo of my finished Cen circuit board complete with mosfet CCS and mobius loop honeycomb IV resistors.

Sounds better than the birds nest Cen i had before, much more refined sound and cleaner highs.

So thanks for sharing your circuit Patrick, much appreciated by all, I'm sure.

Ryan
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Old 6th March 2012, 02:22 AM   #574
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Pleasure.

I am sure many here would appreciate a lot if you could post an overall schematics of how you adapt the CEN for the TDA1541.


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Patrick
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Old 6th March 2012, 05:16 AM   #575
jambul is offline jambul  Belgium
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Dear Patrick,

Can we use the J310 instead of 2sk170 for sen?

Best regards

Denis
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Old 6th March 2012, 05:43 AM   #576
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No. Idss too high, Yfs too low.
Use BF862 if you want alternatives.

Patrick
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Old 6th March 2012, 05:52 AM   #577
jambul is offline jambul  Belgium
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Thank you Patrick,
better to use the 2sk170 (easier to source than 2sk369), can not find the bf862 here in indonesia :-D

Best regards,

Denis
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Old 6th March 2012, 09:16 AM   #578
ryanj is offline ryanj  Australia
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Default Cen with CCS for TDA1541A

Here are my schematics that i used to adapt the TDA1541A with the Cen current conveyor.

I've been able to get the DC offset on the DAC output quite stable (+-3mV max) but im still evaluating its performance and letting the new parts to settle in. The NTC Thermistor compensates for about 2 to 3mV drift from what i can see so far. It may be benificial to use a Thermistor with a higher Beta value, i used 3977K. 4570K may be better, not sure yet.

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Old 6th March 2012, 09:55 AM   #579
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Thanks for sharing.


Patrick
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Old 6th March 2012, 05:38 PM   #580
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I followed the thread with interest, could you post or link to the last sen schematic?
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