50W mosfet amplifier IRF540/IRF9540

[Aldotin]

I think only R8 and C2 has to be connected to signal GND.
And the two grounds (signal and power) always must be connected together, with a link or a resistor.

 

[apexaudio]

I think only R8 and C2 has to be connected to signal GND.
And the two grounds (signal and power) always must be connected together, with a link or a resistor.

No two grounds must be connected separate to PSU GND, only link with 100nF. With wireing diagram as I suggest there won't be any hum and noise, amplifier will be quite dead without input signal as any commercial brand amplifier.
Regards

 

[padamiecki]

Picture of PCB will be post when amplifier prototype was fuly tested.

Hi ApexAudio
not tested yed
or I mismatched?
P

 

[apexaudio]

Hi ApexAudio
not tested yed
or I mismatched?
P

SONY clone not tested yet, my amplifier if I share pcb was fully tested. I share SONY schematics to give idea for some diyers with expirience to try this simple amp.
Regards

 

[padamiecki]

my amplifier if I share pcb was fully tested.

I thought about this:
http://www.diyaudio.com/forums/atta...-mosfet-amplifier-irf540-irf9540-apex-f50.jpg
regards
P

 

[apexaudio]

I thought about this:
http://www.diyaudio.com/forums/atta...-mosfet-amplifier-irf540-irf9540-apex-f50.jpg
regards
P

This amp was tested,
Regards

 

[SAEED JOON]

hi.
i designed a PCB board for sony amp and tested it.
but it has problem with high frequency and distured them.
why?

 

[ravpreet420]

Hi Apex sir
Plz share your Vu meter schematic and pcb layout

 

[meanman1964]

This amp was tested,
Regards

And how does it sound?

 

[CBS240]

hi.
i designed a PCB board for sony amp and tested it.
but it has problem with high frequency and distured them.
why?

This could mean anything. Discriptions are important when asking specific questions.

 

[SAEED JOON]

sorry for english.
i test it but high Frequency Response is not good.
Distortion at high frequencies so high that simply heard.
Anyone tried it?

 

[Hadighorbani]

PCB?

 

[44250]

PCB?

For?

 

[Hadighorbani]

For?

Hi
For amp with irf mosfets
Amp into site
Can you share pcb with 2rail of irf mosfet please?

 

[44250]

Sorry,i don't have it. APEX didn't share that pcb,that is some hing we will have to do by ourselves. Try to find APEX F100 with "Search" option here in forum,it has two pairs of 240/9240.

 

[Hadighorbani]

Sorry,i don't have it. APEX didn't share that pcb,that is some hing we will have to do by ourselves. Try to find APEX F100 with "Search" option here in forum,it has two pairs of 240/9240.

thanks my dear friend

 

[suryadi5417]

where i can find pcb of F100 ?

 

[nalimko33]

F100

 

[electra_ina]

You can't save cost diying pa amp, only you can easy fix it if you diy with avaible parts. I share H1200 soon, three amps work almost one year, without problems.
Regards

He....Mr.Mile...I just read your posting...to remember if you forget this PA H1200. Can you share this PA??
Thanks before.

 

[shreya]

You can't save cost diying pa amp, only you can easy fix it if you diy with avaible parts. I share H1200 soon, three amps work almost one year, without problems.
Regards

He....Mr.Mile...I just read your posting...to remember if you forget this PA H1200. Can you share this PA??
Thanks before.

Mile this post is 2 years old that you have promised to share please don't prolong this gap share as soon as possible

Regards
Shreya