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Official M2 schematic
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Old 13th August 2017, 12:40 AM   #2011
grimberg is offline grimberg  United States
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What outputs devices did you use? If IRFP240/IRFP9240, did you adjust the value of R6?
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Old 13th August 2017, 12:50 AM   #2012
KevinHeem is offline KevinHeem  United States
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Official M2 schematic
I found my screw-up on the first board, I had the inputs and outputs swapped...don't ask. Now I can adjust offset on both channels down to about .1vDC.

Yes IRFP240/IRFP9240, No I have not adjusted R6.
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Old 13th August 2017, 08:33 PM   #2013
Soundhappy is online now Soundhappy  France
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Official M2 schematic
Quote:
Originally Posted by KevinHeem View Post
...No I have not adjusted R6.
I use 10K multiturn trimmer with R6 not 5K
so i can get more resistance and the best precise value if necessary
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Old 14th August 2017, 09:35 AM   #2014
vitalica is offline vitalica  Europe
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@MASantos - 1 pair
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Old 14th August 2017, 09:56 AM   #2015
JPS64 is offline JPS64  Germany
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Boards ordered (15 pairs) -- 9 days expected.

JP
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Old 14th August 2017, 10:18 AM   #2016
MASantos is offline MASantos  Portugal
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I am still waiting for the answer to my question regarding the dimensions of the board. Do the mounting holes and mosfet position fit the UMS mounting standard? if they do not then I am not interested I this board.
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Old 14th August 2017, 11:56 AM   #2017
JPS64 is offline JPS64  Germany
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@MASantos

all informations in thread "my first GB".

JP
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Old 14th August 2017, 06:03 PM   #2018
MASantos is offline MASantos  Portugal
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Originally Posted by JPS64 View Post
@MASantos

all informations in thread "my first GB".

JP
Thanks!!
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Old 17th August 2017, 07:58 PM   #2019
uchu007 is offline uchu007  France
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Hello, I just finished my Nelson Amp M2 and I wanted to know what its used to twist the cables output hp between the cards and the terminals inside the amp? For I did not do it I cabler with wire hard of 1,5m. On a power supply I understand for the parasites that have the twists but on the output wires hp ....... Thank you for your help
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Old 17th August 2017, 08:08 PM   #2020
Zen Mod is online now Zen Mod  Serbia
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Official M2 schematic
plenty of original First Watt pictures....
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