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Citation 12 complimentary Mosfet version PCB's
Citation 12 complimentary Mosfet version PCB's
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Old 6th October 2017, 03:47 PM   #21
kpsthakur is offline kpsthakur  India
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Not able to find Kramskee...any chance to see the complementary mosfet schematic
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Old 6th October 2017, 04:18 PM   #22
Tazzz is offline Tazzz
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Citation12
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Old 6th October 2017, 04:22 PM   #23
kpsthakur is offline kpsthakur  India
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Originally Posted by Tazzz View Post


Thanks Tazzz, meanwhile, please check your PM
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Old 6th October 2017, 05:37 PM   #24
schubert is offline schubert  United States
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Check this thread - you should be able to find all you need here, including info on Kramskee's boards.
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Old 6th October 2017, 06:49 PM   #25
kpsthakur is offline kpsthakur  India
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Originally Posted by schubert View Post
Check this thread - you should be able to find all you need here, including info on Kramskee's boards.


Very detailed...thank you...next stop parts...
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Old 6th October 2017, 07:05 PM   #26
schubert is offline schubert  United States
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Are you modifying an old amp or making a new one?
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Old 6th October 2017, 07:15 PM   #27
kpsthakur is offline kpsthakur  India
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Completely new one...looks like I could find most of the part...interesting values for few...from the schematic...for R1 it reads as 18K use 2.2mA CRD...not sure what that could be...also Tazzz mentioned to use ccs diodes at input differential to avoid thumps while power on...till now I have use 1M resistors pulled to ground at the input..not sure what would that be...any insight or part numbers would be helpful
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Old 6th October 2017, 07:25 PM   #28
Tazzz is offline Tazzz
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CRD = current regulation diode

It's to keep the input differential
biased and in controlled of the output until the rails are essentially depleted during turn off

Otherwise there is a large thump when the supply is slowly discharged
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Old 6th October 2017, 07:27 PM   #29
schubert is offline schubert  United States
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The part number from mouser for the CRD is given somewhere in the thread, I believe. If you can't find it I'll look for it when I get home. Tazzz's ccs diode is the same as the CRD. It does work, as my amps have no power-on or off thump.
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Old 6th October 2017, 07:27 PM   #30
kpsthakur is offline kpsthakur  India
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Thanks Tazzz, any part number I can refer to ...google did not lead me anywhere
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