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Old 12th December 2007, 05:03 PM   #1
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Red face Class Mosfet power amplifier circuit

Hai Friends...! I have 4 pcs 2SK 725 and 4 pcs 2SK 727. I want to bulid Class A Power Amplifier with these Mosfet but I dont have Circuit, can you help me please...?
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Old 12th December 2007, 06:46 PM   #2
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I see that those are two different N channel parts with different
current and voltage ratings.

The 2sk725's voltage and current are quite suitalbe for building
a number of the Zen amplifiers, I think. The ones requiring two
N type Mosfets per channel.

The 727 has a 900 volt rating with a 5 amp current, and I imagine
it could be put to similar use if you like.

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Old 12th December 2007, 09:23 PM   #3
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A 5A rating sounds like a good preamp device.

Grey
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Old 13th December 2007, 04:30 PM   #4
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Thank Mr Pass.. how if 2sk725 use for build Citation12 ? are possible ? Mr Pass I tell you idont have anything experience work with mosfets. All my power amplifier project are BIPOLAR, i dont like mosfets.. But after i liestening sound from ... ( look at the picture please.. ) oh i want to know / study about Mosfets! And i think your web site a the rigth pleace ! Thank

GBU
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Old 13th December 2007, 06:06 PM   #5
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The only issue using these for a Citation 12 would be that
the parts are plastic TO-3P, and the originals are TO-3

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Old 26th January 2008, 04:34 PM   #6
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Tet tet!!! Finaly i can finished my first project MOSFETs ( 2SK 725 )power amplifier but sorry is not Pass Amplifier..and not something special! i am just build and just do it!. Now ready to test my GONG#1 Power Amplifer!
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Old 27th January 2008, 01:18 PM   #7
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Ee Hema here picture of My GONG #1 Mosfets Power Amplifier . hay friends did you know about GONG...? he he he
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Old 27th January 2008, 01:18 PM   #8
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Here Picture of GONG, that is ethnic instrument.. from Java island
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Old 14th February 2008, 04:09 PM   #9
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Hai Mr Pass
I am would like to ask about Aleph Power Ampliifer

Now I am during prepare spare parts of Aleph Power Amplifier
I need 150 Watts rms Power out put.
How many Mosfets per channel ?
How many micro farad of Capacitor?
How many Ampere ( VA ) of Toroid Transformer ?

I am all ready make PCB Aleph 4 but at there just for 12 Mosfets ( 100watts )

Thank you

regards

Agus
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Old 16th February 2008, 04:50 AM   #10
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Hai... Mr Pass where are you...please! i am need your help advice to all of you diy audio sorry with my english!


Thank and GBU!
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