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My MOSFET amplifier designed for music.
My MOSFET amplifier designed for music.
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Old 14th February 2020, 08:42 AM   #1021
FriedMule is offline FriedMule  Denmark
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Great and thanks:-)
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Old 14th February 2020, 01:15 PM   #1022
andrewlebon is offline andrewlebon  India
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Hello Mooly
greetings is this correct layout for me to make pcb
warm regards
Andrew
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Old 14th February 2020, 01:46 PM   #1023
prasi is offline prasi  India
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My MOSFET amplifier designed for music.
Andrew,
Mooly has linked the layout in post 1 as the working layout and also here is the post by Marc on his build.
My MOSFET amplifier designed for music.
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Old 14th February 2020, 01:57 PM   #1024
Mooly is offline Mooly  United Kingdom
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My MOSFET amplifier designed for music.
It's not easy working out other peoples designs from pictures tbh but I'm puzzled where your R9 has come from.

I can't follow this bit:
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Old 14th February 2020, 06:06 PM   #1025
Bangla H is offline Bangla H  Germany
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Mooly that is additional/optional added FB Resistor.
Don't remind correctly who has done it.
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Old 14th February 2020, 06:35 PM   #1026
Bangla H is offline Bangla H  Germany
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Default to Friedmule

For your search.
The 150p also called "styroflex" or choose FKP2 like this:
FKP2D001501D00HSSD WIMA - Kondensator: Polypropylen | 150pF; 5mm; +-2,5%; 4,5x6x7,2mm; 1kV/μs; FKP2-150P/100 | TME - Elektronik Bauteile
FKP2D001501D00HSSD WIMA - Kondensator: Polypropylen | 150pF; 5mm; +-2,5%; 4,5x6x7,2mm; 1kV/μs; FKP2-150P/100 | TME - Elektronik Bauteile
That's what i use.
The 22p is also called "silver mica" or take a KERKO 500V disc capacitor.
Standard :: Silver Mica :: Capacitors :: Passive Components :: Electronic Parts :: Banzai Music GmbH
Mouser or Digi Key should also have stocked them.
Glimmer- und PTFE-Kondensatoren | Kondensatoren | DigiKey


To Mooly and interested it was #719

where prasi shared the schematic and layout with paralleled R9-680k to 22p.
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Old 14th February 2020, 06:39 PM   #1027
FriedMule is offline FriedMule  Denmark
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Thank you, I appreciate your help. I am at this moment, trying to make a circuit. But I am sure it is all wrong, still funny though:-)
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Old 14th February 2020, 07:30 PM   #1028
Mooly is offline Mooly  United Kingdom
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My MOSFET amplifier designed for music.
Quote:
Originally Posted by Bangla H View Post
Mooly that is additional/optional added FB Resistor.
Don't remind correctly who has done it.
Yes, I vaguely remember now. It could have been AKSA that mentioned it.
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Old 15th February 2020, 08:04 AM   #1029
AKSA is offline AKSA  Australia
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Yep, that's me.......
It is controversial. Unconventional, increases THD.
Still love your amp, Karl........

HD
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Old 15th February 2020, 08:18 AM   #1030
Mooly is offline Mooly  United Kingdom
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My MOSFET amplifier designed for music.
Thanks Hugh
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