| Agus Widarto |
| 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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| Nelson Pass |
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.
:cool: |
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| GRollins |
A 5A rating sounds like a good preamp device.
Grey |
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| Agus Widarto |
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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| Nelson Pass |
The only issue using these for a Citation 12 would be that
the parts are plastic TO-3P, and the originals are TO-3
:cool: |
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| Agus Widarto |
| 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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| Agus Widarto |
| 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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| Agus Widarto |
| Here Picture of GONG, that is ethnic instrument.. from Java island |
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| Agus Widarto |
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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| Agus Widarto |
Hai... Mr Pass where are you...please! i am need your help advice:bawling: to all of you diy audio sorry with my english!
Thank and GBU! |
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| Blues |
Agus,
Just follow Aleph 4 or 2 circuit as is and you are assured you will enjoy what you have built. :) |
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| Agus Widarto |
OK! Thank Mr Blues.
Actualy i need Aleph with power out put 150watts.. because my speaker double 10" woofer (DIY) and usualy i am use for liestening my favorite music JAZZ Fusion ( Four Play ) now iam runing with my diy bipolar power amplifier 300watt. and for liestening JAZZ vocal music i am use JBL S26 . and for the future i am have planing to drive my JBL woofer 2226G VGC with Aleph Power Amplifier. please your advice! Thank you!
God Bless You! :D
Sorry my english not good! ( we call english cowboy ):clown: |
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| zeonrider |
Don't He, He, to us put the schematic of that Amp,
ASAP!!!
Regards zeoN_Rider |
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| Agus Widarto |
Why..??? Mr Zion rider?:confused: are you Bipolar man? Bipolar maniac? or Bipolar aholic??? he he he:D
Thank for advice
regards |
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| zeonrider |
Don't he, he, this is DIY site, share with us, schematic of GONG.
Regards zeoN_Rider |
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| bobsinclar |
Agus,
2226G...for jazz:eek: I'd personnaly advise 2235 or 2234
they are more commonly used in Hi fi applications...the 2226 is a PA woofer not really for hifi applications ...unless you consider changing the spyder and suspension for softer ones...,
I tried it already...a pass 30w will drive it easily, the problem doesn't lie there...this speaker has a heavy cone, with cone breaks quite high around 1K2, making the mid range a bit hard to cross-over...as well it can be fitted in small volumes, but with low output under 70HZ...
Vince |
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| Agus Widarto |
Yups...! Mr Bob,
thank for your advise and 100% You rigth! JBL 2234 is driver wofeer for JBL 4435 LR . I am just had on hand stock JBL driver wofeer 2226G.
Mr zionrider soory actualy i don't have Schematic of my gong power amplifier.. because the my pcb" ex" from the other power amplifier ( giving from my friend )i am just remove all parts and put the new parts and better parts..
GBU!
regard |
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