Hi. By increasing the number of transistors, you will not get an increase in output power. The output power depends on the supply voltage and current, as well as the output voltage of the amplifier.
Lets suppose he has a 70-0-70v 30 ampere transformer. It can run the 2 transistor board and will not burn it. In this case increasing the number of transistors will help, provided the driver transistors gives enough current to the base of the 5200/1943 transistors.
There a few issues with this Problem 1 transistors in this configuration have no voltage gain 2 the driving board will have a current limit which you just exceeded 3 the current capabilities of the transistor derates with voltage drop so increased supply voltage will decrease the availability of current without excessive heat 4 the voltage gain is likely from an op-amp that has a maximum voltage supply
Looks good but I think the wire on the collectors is rather thin to carry 20 amps you may have a lot of voltage drop, It should be at least 1.5mm².You need also 20A secondary on transformer and a larger capacitor bank. I do not think now the base drive is enough for all those transistors.
yeah man but adding more transistor is not suitable for every driver , each driver carry its own min and max watt so you cant add more if driver made for only 300watt
Why add useless transistor? It doesn't mean more transistor = more power? You need to upgrade the power supply and some modifications to the driver stage for stable operation.
I seriously suggest you buy a fan and set up some type of fume extractor because you are going to have problems with your breathing if you breathe in too much solder fumes
Actually way less than that, amplifiers are rated in RMS, so with 50 volts p-p at the output, you have really only 17.675 volts rms/4 ohms=4.42 amps X 17.675 volts= 78 watts RMS
Hi I just build the same circuit based on the same diagram but I have a problem. I used the same components except the BD139 becouse I had only BD140 in stock. Could this be the reason that at low volume levels the amp distorts but at higher levels its playing fine? Please let me know if you have something in mind about that. Thanks
Just sharing the heat, but the power output willnot increase. dangerous too for output transistor, you need to put base resistor each and so that driver transistor will not be overload.
It doesnt mean 50 x 20 = 1000 watts that your gonna get 1kw its more 900 watts or 850 cuz of the internal resistance of the transistors so if you want 1kw i recommend 75 0 75 volts 25 amps
I would like to see the output on an oscilloscope, a 10 KHz sine wave would show a huge amount of crossover distortion because there's no biasing network.
Those heat sinks are not big enough for 1000W To get more power you need a higher voltage +/- 70 volts min. you also have to drive the power transisters harder, more volts, heaver wire #12 or #10. There are more things that need to be done.
how can you achieve higher wattage if you use same driver transistor, it could not drive those 16 transistors, the power output it should be in darlington pairs
@@electronicshelpcare Sir, we will do that in this. How many volts and how many amperes do 8 transistors give from the transformer.. 2sc3264 2sa1295 transistor ampere and volt
Hi. Great video. I have a question: It's possible to decrease power in a power audio amplifier, doing the opposite? Might have some troubles if I remove some pairs of transistors a in power monoblock to decrease power?
Pero si el ingeniero hizo la placa para esos dos transistores. Como le vas a sumar más carga y voltajes?? Tenés que hacer todo de cero.adelas esos cablecitos no soportan la carga de 1000watt .se le ponen cables pijudos de 2 milímetros y tipo alambre para que no hagan resistencia en su trayecto
i have one question , since my system is for 200watt and there are 4 transistor ok so i dont mean to increase the i am not going to increase power only if i added 6 transistor means 4+2=6 then will it increase the sound qaulity , i dont care it is ok if i am getting 200watt only from 6 or 8 transistor ok only thing is i want better saund qaulity
On porew amplifier you needest bigger ampere and tranzistor output its also need no modification of the original circuit driver resisotr. Power outage didoes clamp down to 4A menwelll power transformer CLIP dower so 4 tranzidstor output in 4 and 8 OHMS of 500W darlignton MOSFEPT cikruit.
i have a question how low it can handle term of impedance of the load. he doesn't increase the voltage but the ampere is high if he is correct can he go at .25 ohms like 2 dual voice coil 1 ohms each coil
why you joined two output of the transistor using 0.22 ohm resistor? (NPN & PNP) positive & negative together....??? its short circuit bro. i don"t understand.!!!
i have my 200+200 watt board but after seeing you, your board is made for that much watt, man i can see each resistor is 2 or 1 watt , but in my system there small watt resistense and also only three big transistor and remaining 7 transistor are so small and you have 7 big size , and also the size of capacitor is also big so i know you cant add more transistor in any board untill and unless we know the min and max watt capabilities of that particular board with input volt and amp
Ciao...ho i finali e tutto quanto il resto ed un alimentatore switching da 500 wstt a 65 volt duale...come posso fare per poterlo usare von questo circuito riducendo il numero di finali?
Hlo bro I've made this small mono circuit but 1943 has much heating on slower volume. And sound also didn't be strengthened as volume turned up. Help plz
Because this is not correct. This is not the way to increase power. Increase heat sure but you will need to look for another video that correctly shows how to achieve the goal that this video is saying it is achieving
Il ne faut pas rêver !!! La puissance ne dépend pas que du nombre de transistors !!!! Même en augmentant la tension d'alimentation on obtient pas des Watts comme çà !!!! Bricolage ! C'est tout ! Do not dream !!! The power does not depend on the number of transistors !!!! Even by increasing the supply voltage we do not get Watts like that !!!! DIY ! That's all !
Bhai 75-0-75 agar output h transformer ka to uski wire ko kholo aur total voltage upon total length of wire at one side k hisaab se center se dono wire ki length lete hue waapas lapet do , ban gya transformer.😁
For the circuit diagram please visit here
shorturl.at/FNS56
Hi. By increasing the number of transistors, you will not get an increase in output power. The output power depends on the supply voltage and current, as well as the output voltage of the amplifier.
Sir...can you help me.im planing to change the transistor value.of my sakura AV3022 from 300 watts to 550 watts.thank you.
Lets suppose he has a 70-0-70v 30 ampere transformer. It can run the 2 transistor board and will not burn it. In this case increasing the number of transistors will help, provided the driver transistors gives enough current to the base of the 5200/1943 transistors.
ice cold hes using a very thin wire for the output it cant handle even a hundred watts how much more with a thousand.
Yea. He said 50V. So it's completely voltage limited into 8ohm load. Even with 4ohm, it's only 300W.
Well it would hav perfomed better if the extra transistors were driven by 5200 and 1943 from the driver board
Very good DEMO 👌👌 thanks brother
Gaurang DJ Sound ODHAV Ahmedabad Gujarat
क्या बात है जबरदस्त ट्रिक
Thanks 👌👍
There a few issues with this
Problem 1 transistors in this configuration have no voltage gain
2 the driving board will have a current limit which you just exceeded
3 the current capabilities of the transistor derates with voltage drop so increased supply voltage will decrease the availability of current without excessive heat
4 the voltage gain is likely from an op-amp that has a maximum voltage supply
Agree
Should be normal that the transistors have no voltage gain but current gain?
Looks good but I think the wire on the collectors is rather thin to carry 20 amps you may have a lot of voltage drop, It should be at least 1.5mm².You need also 20A secondary on transformer and a larger capacitor bank. I do not think now the base drive is enough for all those transistors.
yeah man but adding more transistor is not suitable for every driver ,
each driver carry its own min and max watt so you cant add more if driver made for only 300watt
बहुत सुंदर, आपका यह वीडियो देखकर एक बुधु से भी बुधु आदमी इंजीनियर बन जाए,
Why add useless transistor? It doesn't mean more transistor = more power? You need to upgrade the power supply and some modifications to the driver stage for stable operation.
I've watched all of your video like this...and can you plsss test it..if it is really good?
Mantap 👍👍👍🙏🙏
I seriously suggest you buy a fan and set up some type of fume extractor because you are going to have problems with your breathing if you breathe in too much solder fumes
For 50V amp output you need 2.5 Ohms speakers to have 20A current. If speakers are only 4 Ohms, you get maximum 12.5A current and 625W power.
Actually way less than that, amplifiers are rated in RMS, so with 50 volts p-p at the output, you have really only 17.675 volts rms/4 ohms=4.42 amps X 17.675 volts= 78 watts RMS
Hi
I just build the same circuit based on the same diagram but I have a problem. I used the same components except the BD139 becouse I had only BD140 in stock.
Could this be the reason that at low volume levels the amp distorts but at higher levels its playing fine?
Please let me know if you have something in mind about that. Thanks
Please visit for circuit diagram
www.pinterest.com/electrohelpcare/pins/
😁 THANKYOU, FOR ALL THE HELP!!!!!!!
Just sharing the heat, but the power output willnot increase. dangerous too for output transistor, you need to put base resistor each and so that driver transistor will not be overload.
Good job 👍🏻👍🏻 🇮🇳 Kuki 14|08|2022
Please visit for amplifier circuit diagram
electronicshelpcare.net
It doesnt mean 50 x 20 = 1000 watts that your gonna get 1kw its more 900 watts or 850 cuz of the internal resistance of the transistors so if you want 1kw i recommend 75 0 75 volts 25 amps
y cuantos voltios recomiendas para 300 vatios RMS de potencia?
@@GamePlay-gz4ep Meu amplificador tem 250w e uso 63 volts. Talvez sirva para 300w.
So there’s a 8 transistor versus one , but the capacitors kept the same in the drive unit. Seems fishy to me that it’s just this easy ....
no in actual assemble there some of the parts i think 4 parts need to replace it, its a secret idea .
Makasih kak sangat detail tutorialnya
Hello Sir Goodday!Which one is better toshiba transistor or njw transistor?
May i ask you.. Is that only one channel amplifier? How to put left and right speakers?
I would like to see the output on an oscilloscope, a 10 KHz sine wave would show a huge amount of crossover distortion because there's no biasing network.
Good point. I set up XOD at 11kHz 2Vp-p👏✌️🦅
Can I use any paper when separating heatsink and transistors?
Please visit for circuit diagram
www.pinterest.com/electrohelpcare/pins/
Those heat sinks are not big enough for 1000W To get more power you need a higher voltage
+/- 70 volts min. you also have to drive the power transisters harder, more volts, heaver wire #12 or #10. There are more things that need to be done.
And just like that, you don't need to upgrade any of the supporting circuitry????
I wonder how long this will last?🤔
no need to upgrade the pre-amp, upgrading the main drive or power amp is enough.
modul kit power socl 504 socl 506 👍👍👍 from indonesia JOSS
how can you achieve higher wattage if you use same driver transistor, it could not drive those 16 transistors, the power output it should be in darlington pairs
It doesn't work like you think. The current at base will be divide to other transistor so you decrese the performance.
How many amperes will be given on 2S3263 transistors? Pls sir reply soon...
Thank you sir for your comment sir. 2sc3263 can take maximum 4 amperes. please visit for new www.electronicshelpcare.com
@@electronicshelpcare Sir, we will do that in this. How many volts and how many amperes do 8 transistors give from the transformer..
2sc3264 2sa1295 transistor ampere and volt
Please sir reply soon....
good night, how many volts does this audio card support?
Hi. Great video. I have a question: It's possible to decrease power in a power audio amplifier, doing the opposite? Might have some troubles if I remove some pairs of transistors a in power monoblock to decrease power?
In addition, in the previous stage, transistors (drivers) must have good cooling.
hi , thank you so much for this video, please i want use 4 or 5 transistor 2sc5200, what I do exactly, and thank you again
Wait till you try it before you thank him 😜🙂
Very very very very very very good bhai
It this circuit need dual power supply and the output rms power increases ????
Yeah Dual power suply (+) 55v ( - ) 55v and GND
dual and huge transformer ( more than 1000/1200 VA .)
have you measured the current on the driver transistors?
Luk Luk. - your question is right. The more adding output transistor, the more bias decrease given by the only one driver transistor..
@@shiernanpapin85 can you explain what bias is and what dco is
Thank u so much🔈🔉🔊
Sir pls make video on yiroshi driver board
i think this circuit can use maximum 35-0-35 ac voltage. is this correct ?
Vi um projeto igual a esse o seu ficou bem melhor e mais organizado resistente parabéns
I used all resistance in 2watt rating as u told there .
Pero si el ingeniero hizo la placa para esos dos transistores. Como le vas a sumar más carga y voltajes?? Tenés que hacer todo de cero.adelas esos cablecitos no soportan la carga de 1000watt .se le ponen cables pijudos de 2 milímetros y tipo alambre para que no hagan resistencia en su trayecto
Phuhghggggje8777u788+09uhnnbj poi+00009999iiiiiiygyhjhuujnmk.
oh super.. 1000W amplifier can use 50 0 50 V 20A Transformer... its up to 20 kilogram waight
hi sir..what kind of soldering iron you are using?
Nice video
Whats the reason for using 2sc5200 and 2sa1943? Why not use only 2sc5200 x 2 or 2sa1943 x 2?
Use high current transformer to achieve the power output of an amplifier.
with many pairs it improves the damping factor and the sound is more beautiful.
the improvement is more evident by doubling the power capacitors.
is it making sound good , after adding more transistor ,
i have one question , since my system is for 200watt and there are 4 transistor ok
so i dont mean to increase the i am not going to increase power
only if i added 6 transistor means 4+2=6
then will it increase the sound qaulity , i dont care it is ok if i am getting 200watt only from 6 or 8 transistor ok only thing is i want better saund qaulity
Hi sir, can you share your power amp driver pcb layout and component placement guide please
electronicshelpcare.com/transistor-circuit-diagram-2sa1943-2sc5200-2/
@@electronicshelpcare thanks a lot sir godbless
link open kiyu nahi ho raha sir
1000w on tight wires.
You must need fat wires
On porew amplifier you needest bigger ampere and tranzistor output its also need no modification of the original circuit driver resisotr. Power outage didoes clamp down to 4A menwelll power transformer CLIP dower so 4 tranzidstor output in 4 and 8 OHMS of 500W darlignton MOSFEPT cikruit.
bro kisi bhi board me kar sakte hai kya extra mosfet add
i have a question how low it can handle term of impedance of the load.
he doesn't increase the voltage but the ampere is high if he is correct
can he go at .25 ohms like 2 dual voice coil 1 ohms each coil
note speaker do not have steady resistance it can go higher or lower when playing
Can i use this amplifier for PA Systems like outdoor program?
Yes you can
Bro please send the circuit diagram of mono 200watts and stereo 300watts amplifier based on 5200/1943 and 200 watts amplifier for TDA 7294 .plz reply.
Brother ! Adding more transistor how i can increase circuit voltage . like 60-0-60 or 75-0-75 ac from transformer
Can you check the power supply and sound quality of your upgrade amplifier?
why you joined two output of the transistor using 0.22 ohm resistor? (NPN & PNP) positive & negative together....??? its short circuit bro. i don"t understand.!!!
what size of screw did you use for transistor?
i have my 200+200 watt board but after seeing you, your board is made for that much watt, man i can see each resistor is 2 or 1 watt ,
but in my system there small watt resistense and also only three big transistor and remaining 7 transistor are so small and you have 7 big size , and also the size of capacitor is also big
so i know you cant add more transistor in any board untill and unless we know the min and max watt capabilities of that particular board with input volt and amp
It's having heat up on 12-0-12 5amp only . What the problem it is . Heat sink also connected and good quality and quantity
Bro power output will be less
What is heating up? Transformer or transistors?
Check the OHMs of your speaker
Why you dont use Resistor for basis of transistor??
la electrónica me encanta
Sir please show the performance 🙏
no audio test?
How can you raise the voltage power when the required voltage for the circuit board is only 24v?
Ciao...ho i finali e tutto quanto il resto ed un alimentatore switching da 500 wstt a 65 volt duale...come posso fare per poterlo usare von questo circuito riducendo il numero di finali?
olá vc pode passa para mim esta modificação deste amplificador ,se der obrigado ,gostei mesmo.
where did you buy that kind of heat sink?
Sir transister badhane se Kya fhark padega
nice video bro
Bhai 2sc5200 ke jagah ttc5200 lag sakte hai koi problam to nhi hoga na
He cannot achieve that desired power, because he uses small wires and the driver is original not an upgrade.
cables demasiados finos, deben colocar calibres mas gruesos para que soporten tanta corriente.
nice video
- предоконечные управляющие транзисторы как минимум надо на радиаторы установить.
Hlo bro I've made this small mono circuit but 1943 has much heating on slower volume. And sound also didn't be strengthened as volume turned up. Help plz
Show us the drawing of the circuit..
It sounds like you have put components in the wrong way ie small input pair or not correctly set up the biasing..
Because this is not correct. This is not the way to increase power. Increase heat sure but you will need to look for another video that correctly shows how to achieve the goal that this video is saying it is achieving
I would like to hear about the amplifier when it does not give any noise
Where does the 1.3 amperage come from?
and where does 2.5 amperes come from?
please explain sir
🙏🙏🙏
www.electronicshelpcre.com
Yes I need help
beautiful
What is you name teacher ? Please
Yes yssss
Sir i need to talk please contac number plse
Bro components ki list b uplod Kiya kro site pe plz.
I want you to help me make over my pv hamps it is 2000 watts it is given me trouble i would to make if up like how you do that one send a text plz
do you have a video to test the sound
Mene bnai thi ye pcb good sound
Helo bro plz tell me why use .47 ohm resistance in between emter and speaker
Hi how can I no how make sercket the main Bord pls
The base current of 2sa1943 is 15Amp if you connect 20.8 Amp it will brun up. fake....
You are absolutely correct
Daisy chained collectors ! Ha ha ha, bloody hilarious !
Amplifier board working or not working testing
what secondary voltage needed?
Il ne faut pas rêver !!!
La puissance ne dépend pas que du nombre de transistors !!!!
Même en augmentant la tension d'alimentation on obtient pas des Watts comme çà !!!!
Bricolage ! C'est tout !
Do not dream !!!
The power does not depend on the number of transistors !!!!
Even by increasing the supply voltage we do not get Watts like that !!!!
DIY ! That's all !
Sir isska jo driver power hai 16 transistor drive kor sakta hai?
bhai Mujhe a ya board kharidna hai iske liye ye kya karna padega
WHAT ABOUT BASE RESISTORS PLUS N MINUS??
You will never have 1040 watts because 35V/4ohm=8.75A PEAK! 8.75*35=306.25W PEAK! RMS is certainly about 200W!
Hi bro,(75-0-75,10amp, transformer) ,how to step down convert 55-0-55,
Bhai 75-0-75 agar output h transformer ka to uski wire ko kholo aur total voltage upon total length of wire at one side k hisaab se center se dono wire ki length lete hue waapas lapet do , ban gya transformer.😁
This 2 transistor amplifier circuit ki price kya hai
We have to increase voltage and current of transformer and need more powerful driver circuit
What value are the ballast resistors, 1 ohm?
Can,I used 45V tenasomar.
Without increase driver stage you cannot get full power