900W H-class PA Amp with Limiter

[Riff]

3EF PCB

nice work riff
i hope you were the answer to all waiting for 3EF pcb for share😀

thnks engel...,yes i will share my work of 3EF pcb if it's corrected by anyone who is in this capacity,
I am just a beginner in the field of electronics, which I can only draw the pcb, and even then as a novice.
i hope u understand my bad english.
regards.

 

[engel dela pena]

well you have a very good beginning,you begin with lay out making,

 

[pankaj kashyap]

someone tell me what's point A&B ?
plz help

 

[AndrewT]

What do you mean?
Are you asking what is ClassAB?

 

[jokomul]

point A & B used for bridge mode. CMIIW

 

[AndrewT]

which schematic are you referring to.
There is no A, nor B in post1 sch.

 

[mj777]

bridge mode(point A and B)

Point A and B for bridge mode.

This what apex said, refer to post #74

regards,

mj777

 

[jokomul]

3ef VAS without limiter
i hope sir mile can correct this.
regards

Hai Riff,
you can use half of 5532 for balance input

 

[engel dela pena]

Hai Riff,
you can use half of 5532 for balance input

good idea
😀

 

[apexaudio]

Hai Riff,
you can use half of 5532 for balance input

Like on this sch 🙂

 

[kml88]

mr mile,please help me with your power i want to built apex b500tef with travo 20a 45-0-45 vac,what anything that must i change for speaker 18'x2x4ohm can move maximum?

 

[kml88]

mr mile,please help me with your power i want to built apex b500tef with travo 20a 45-0-45 vac,what anything that must i change for speaker 18'x2x4ohm can move maximum?

 

[wattaniya]

h900

hi apex sir,
when u are sharing this pcb layout?

 

[andrewlebon]

Hi Nazirdigi
greetings how did you put the values of components this is sir apex commercial design
warm regards
andrew lebon

 

[wattaniya]

hi andrewlebon,
this layout is already posted by apex sir, i think he posted in b500 thread.

 

[wattaniya]

hi apex sir,
check this page and read post no (60).
http://www.diyaudio.com/forums/soli...t-amplifier-irf540-irf9540-6.html#post2179519

u replied 2 year before.

 

[Riff]

hi apex sir,
when u are sharing this pcb layout?

Apex sir we waiting for this
for VAS look like from
100W Ultimate Fidelity Amplifier

 

[vedmitraa]

Hello Nazirdigi did you try this circuit.There is a fault in component value of negative side ofswitcing circuit. I have corrected it and is working fine since 6 months.

 

[wattaniya]

Hello Nazirdigi did you try this circuit.There is a fault in component value of negative side ofswitcing circuit. I have corrected it and is working fine since 6 months.

which circuit vedmitraa?

 

[vedmitraa]

Pcb layout on this same page post #2213