500W PA amplifier with Limiter

[wattaniya]

hi apex sir,
whats the difference of darlington,triple darlington. i mean the procedure.
if u can pls share the darlington b500 pcb layout.

 

[rlg_200]

darlington means twice the beta and triple darlington is trice the beta.

rlg

 

[apexaudio]

You need triple darlington if you want drive 8 pairs of outputs for 2ohm load...

 

[wattaniya]

You need triple darlington if you want drive 8 pairs of outputs for 2ohm load...

ok sir.
can u share the pcb layout of darlington or triple darlington.

 

[wattaniya]

ok sir.
can u share the pcb layout of darlington or triple darlington.

if u dont have the pcb pls draw and show the additional darlington parts where to come and the paths in the board.

 

[wattaniya]

HI APEX SIR
WHAT IS THE ADVANTAGE OF THE 4 PAIR DARLINGTON.

 

[eesbiboi]

greetings everyone

this is my second amp build of b500...
8pairs output tranny
50 0 50 20amps trafo

thanks to sir mile a lot...

regards
ees

 

[aman khalsa]

nice work sir....

 

[eesbiboi]

thank you sir...

regards
ees

 

[apexaudio]

greetings everyone

this is my second amp build of b500...
8pairs output tranny
50 0 50 20amps trafo

thanks to sir mile a lot...

regards
ees

Nice work, can you post hi-res pictures?
Regards

 

[wattaniya]

greetings everyone

this is my second amp build of b500...
8pairs output tranny
50 0 50 20amps trafo

thanks to sir mile a lot...

regards
ees

HI EESIBOY. GOOD WORK.
CAN U SHARE THE EXTRA 4 PAIR LAYOUT.
WHAT ARE THE CHANGES U MADE.
WHICH POWER SUPPLY U USE.

 

[wattaniya]

HI APEX SIR.
IF I ADD 5 OR 6 PAIRS OF OUTPUTS WITH 80V DC, WHAT ARE THE BENEFIT I WILL GET?
CHECK THE IMAGE IS IT CORRECT?

 

[apexaudio]

HI APEX SIR.
IF I ADD 5 OR 6 PAIRS OF OUTPUTS WITH 80V DC, WHAT ARE THE BENEFIT I WILL GET?
CHECK THE IMAGE IS IT CORRECT?

If you want add more outputs use triple darlington...

 

[rompi]

Hi hello eesbiboi

u have a nice work where did u buy ur electronics parts in advance electronics? pls just share so that i can buy and contruct dis power amp.can i have ur email add if pwede....my email add rompidecandado@yahoo.com

regards.... rompi

 

[basrad]

hi mjm777
greetings why you dont use ldr and led combination instead of nsl32
easy and cheap to make
thanking you
andrew lebon

[hi sir pls send me how to revised nsl32 sir?

 

[eesbiboi]

Nice work, can you post hi-res pictures?
Regards

im sorry sir mile...
i only use my phone camera for pictures...
i do not have digital camera for clear pictures...

i will post clearer pics when i have better camera...
more power to you and to DIYAudio...

thanks
regards
ees...

 

[rompi]

hi hello sir apex....
sir, can i ask the price of your b500 amp kit not included the heatsink and psu only the pcb and parts im from philippine just include the shipping cost....

regards rompi

 

[wattaniya]

hi apex sir,
can i use two 4.7k,5w resistors in parallel for r24,25 to get 2.35k,10w to reduce the hot . see the image

 

[vargasmongo3435]

Hi guys I'm new to build amplifiers and I just want to know if some one already build the Apex B500 amplifier, also is some one already did it please let me know vargasmongo@gmail.com

 

[vargasmongo3435]

apexaudio I like your PBC layout nice : D