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Old 27th April 2012, 09:57 AM   #5811
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Very good, Alfred, and more compact.
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Old 27th April 2012, 09:58 AM   #5812
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Alfred, i started to modify the current mirrors. I put that in the lab today.
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Old 27th April 2012, 10:06 AM   #5813
hesener is offline hesener  Germany
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its the same heatsink as before, if that is what you mean. the board size etc is the same.
Note this now has jumpers to test the shunt regulators independently, before connecting to the preamp...
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Old 27th April 2012, 10:07 AM   #5814
hesener is offline hesener  Germany
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Quote:
Originally Posted by Joachim Gerhard View Post
Very good, Alfred, and more compact.
This time I made sure the input connectors, input structure, and output structure are as close as possible and have heavy-duty GND connections... ;-) learned from that mistake....
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Old 27th April 2012, 10:12 AM   #5815
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I think Benedetto is talking about cooling the input transistors. I think that is not necessary.
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Old 27th April 2012, 10:14 AM   #5816
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Have send you an e-mail. I see that you use 4 x 4700uF and not 2 x 4800uF plus x 6800uF as shown on the schematic. The schematic is OK otherwise as far as i can tell. MiiB should double check that.
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Old 30th April 2012, 09:38 AM   #5817
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I think Benedetto is talking about cooling the input transistors. I think that is not necessary.
Exact, but we discussed to keep them at more or less the same temperature.
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Old 30th April 2012, 11:52 AM   #5818
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They do not get very warm anyway. We are on track solving the mystery of oszillation.
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Old 2nd May 2012, 09:31 PM   #5819
hesener is offline hesener  Germany
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just to let you guys know, the layout of the second revision of paradise is done and being checked as we speak. we should be ready to order the new PCBs pretty soon....
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Old 3rd May 2012, 06:00 AM   #5820
RCruz is offline RCruz  Switzerland
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I would like to beta build those also.
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