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UGS-muse preamp GB
UGS-muse preamp GB
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Old 2nd December 2020, 10:20 AM   #2001
schultzsch is offline schultzsch  Europe
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Thanks Alex and sorry for being so pushy...
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Old 2nd December 2020, 12:18 PM   #2002
PsykoK is offline PsykoK  France
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No problem, I can understand that you get impatient.
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Old 2nd December 2020, 12:42 PM   #2003
schultzsch is offline schultzsch  Europe
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Well all the past years in the Christmas period I visited my family members and all that kind of stuff you do in the period which mainly is socializing, I guess you all know and did the same.
Since this is the first year when everything will be closed and the relatives will not be so happy to see you at their door I planned to go ahead and do a bit of soldering for the preamp just to forget about the period which we go through.
This is the reason which made me to be a bit pushy and impatient, hope you understand me and accept my apologies.
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Old 2nd December 2020, 01:02 PM   #2004
gionag is offline gionag  Italy
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UGS-muse preamp GB
They are here...
I can't test the second encoder because the optical encoder is still in the hands of ups. They blame snow for the delay ... Go figure.
As soon as I get them I can test my whole contraption and then... If someone needed i can give Gerber's for both the adapters and the ring light.

I trust stone for the functional test of the second encoder.. i didn't see that delay coming. So on that matter I have no feedback. Other than that... Everything else seems to run pretty smoothly.20201202_135744.jpg
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Old 3rd December 2020, 10:44 AM   #2005
PsykoK is offline PsykoK  France
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I'm in trouble
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File Type: jpg PXL_20201203_104152116.MP.jpg (979.8 KB, 249 views)
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Old 3rd December 2020, 11:37 AM   #2006
Boydk is offline Boydk  Denmark
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Old 3rd December 2020, 05:42 PM   #2007
PsykoK is offline PsykoK  France
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I have no received everything.
I will try to sort everything this WE.

I will keep you updated
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Old 3rd December 2020, 06:57 PM   #2008
gionag is offline gionag  Italy
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UGS-muse preamp GB
Good luck UGS-muse preamp GB
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Old 4th December 2020, 09:36 AM   #2009
PsykoK is offline PsykoK  France
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thanks, I almost finished sorting and preparing the PSU parts yesterday evening.

I just discovered that I have 3 missing refs. they should be delivered next week (mouser sent them directly from the US)
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Old 4th December 2020, 04:20 PM   #2010
Hicoco is offline Hicoco  France
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UGS-muse preamp GB
For those who will use the PSU substitute, 2 things for now.
1- Be sure that you have the Hammond transformers pins straight, it is very tight when you put those in the PCB holes. Looks like the pins are a little bit bigger than in the datasheet.
2- If you use J113 instead of PF5102 Jfet, check the IDDS of each and adapt the signal resistor value of each (R4 R7 R8)
see:Salas SSLV1.3 UltraBiB shunt regulator
Also for the snubber parts, i will find the best value for the Hammond Transformer we use with my Quasimodo Board and will post the results.
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