Sir Bahut hi badiya video aur jaankari di he aapne hfe ke baare me kam logo pata he isse logo ko bahut fayda ho sir amp ko switch laga kar stereophonic kese kar sakte he is par video banaye
Your contribution to students is god Gifted because good Dr, good scientists, good master all are gone to abroad thanks is very small may God bless you with health and wealth
Sirji Namaskar Bahut achha laga. Nice explanation. NPN transistor amplifier is best. But mostly complimentary vpair like 3055 2955 or 5200 1943 or 5198 1941 are being used in output stage. Moreover while measuring Hfe gain with DMM same transistor shows different different gain in case of c5200 or ttc5200 purchased at different time interval from different online sites / shops. Batch mfg. Main aisa hota hai. To kya batch match karke kharidna hota hai. Aap jaise fail karke reject kiya hai, waise to kharida gaya transistor ko kaise use karein, is par ek nuskha bataiye please. Yeh janiar bhi bahut jaroori hai. Thanks a lot sirji. Aap ne bilkul sahih bataya hai. Keep it up.
Nice video sir.. sir ahuja amplifier ka fault finding ka video banaye..up jitne amplifier ka video dalehe sab real he...apka channel me video se bahut kuch sekha hu.....thank you sir (wb purulia)
Driver stage ke transistor ka Hfe value 100% match karna best hai. Output stage ke transistor ka value Agar 100% percent match hua to bahut hi Achcha result milega but itne sare transistor ka hfe value match karna possible Nahin Hai isliye emitter resistance lagaye jate hai jo hfe ko balance karte hai
Thanks for sharing your topic on hFe of transistors. This helped me lot. I had prepared corel files for so many npn and pnp complementary pairs at output and driver stage. Also collection of both pnp and npn output transistors most commonly used in amplifiers. But today, your lucidly explained on hFe broadened my knowledge. So now I can concentrate on NPN transistors with having almost likely same hFe. My question here arises that if I make or utilise for home purpose say only 50 watt output, wherein I am not going to utilize the transistors full gain/ saturation, may be half of it's gain. Can I use complementary pairs of C5200 and A1943? Kindly suggest me. Thanks in advance.
Most output transistor are connected with emitter resistance to match difference of their hfe value you can use very easily 5200 and 1943 pair if there not matching Hfe , emitter resistor will compansate. Only driver transistor are required to match their hfe value but sometime some PNP and NPN transistor has great different hfe value .
@@AmplifierWorld Oh! I could follow your reply. Every pnp and npn complementary output transistor has 2 resistance compensated at its emitter. So, only driver transistor, say BD139 and BD140 can it be replaced with MJE340 and MJE350 perfect complementary pairs. Regards
DEPEND UPON VOLTAGE . BEST TO 70-0-70 HAI TRANSISTOR AMP KELIYE CIRCUIT PCB CHIYE TOA MERE DOST KI CHANNEL LO EK BAR SIRF PLS .th-cam.com/channels/UlqMj7OTkaqUnlA-2NXHlA.htmlvideos
Mera ek question hai... Output stage me c5198 aur a1941 kaise kaam karte hain ? Mere sub-woofer me ye pair lage hue hain. One pair give 50watt. Can you answer it?
C5198 ki 140v and 10amp current capacity hai, ye ek pair 70 watt ka hota hai jo ki hi fi audio amplifier ke output stage me lagta hai. Aap isko dj amplifier ke Driver stage me bhi use kar sakte hai jo ki 20 pair transistor ke base ko voltage and current de sakta hai
आउटपुट स्टेज के ट्रांजिस्टर की एच एफ ई वैल्यू मैच नहीं करने से भी चलेगा लेकिन इनपुट स्टेज और ड्राइवर स्टेज के ट्रांजिस्टर की hfe वैल्यू मैच करना बहुत जरूरी होता है और उससे एंपलीफायर की बहुत सारी एरर वाली प्रॉब्लम सॉल्व हो जाती है जैसे डीसी ऑफ सेट और वन साइड ओवरहीटिंग
I have received an amplifier for repair ( Ahuja SSA 250 M) all the power transistor numbers are rubbed off. Can you please tell me the correct number of the power transistors ?
हीट सिंक सेंसर को मेन हीटसिंक के ऊपर लगाना है और ड्राइवर बोर्ड में उसका अलग से सर्किट होना चाहिए, जो कि अभी तक किसी यूट्यूब वीडियो में डिटेल्स में नही बताया है। मैं बाद में इसपर वीडियो बनाऊंगा
Aap npn and pnp me amplifier board banane ja rahe hai to har ek transistor ka hfe value lekar lagaye, aap shop par hi sabhi transistor ka hfe lekar aur almost same value vaale transistor le sakte hai, but shopkeeper manana chahiye, company me jo amplifier bante hai usme company lot me transistor kharidti hai jisase same hfe value match karne me aasani hoti hai
Something wrong something right information in case we make an amplifier without output transformer we can ignore hfe value in driver and output stage if we make an amplifier with output transformer , hfe value create major problem.
You are very much right. How many transistors we have to reject? Moreover same transistor purchased at different times, different batch, different shops, different mfg co. Hfe varies. End result would be Driver or Output transformers, where DC isolation is also there which protects Speaker also. Please inform any circuitry available with output transformer. Thanks in advance.
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Sir your videos ,,very good .and ...clear voice with...exalant knowlage ..thanks sir..
Sir aap kay sabhi videos say achi knowlage milte hai thanks sir
Aap ki video bahut help full Hoti hai ye 👍👍👍
सर आप बहुत आसानी से समझाते हो आपसे बहुत कुछ सिखने को मिलता है thanks❤❤❤thanks sir ❤❤❤ from rajsthan
अच्छी तरह से समझाया है आपने... धन्यवाद
Very important information
Thanks sir bahut Badhiya se shamjhya Aapne
Sir Bahut hi badiya video aur jaankari di he aapne
hfe ke baare me kam logo pata he isse logo ko bahut fayda ho sir amp ko switch laga kar stereophonic kese kar sakte he is par video banaye
BHAI MONO AND STEREO SWITCHING MAI EK BALANCE CIRCUIT LAG TA HAI .
Your contribution to students is god
Gifted because good Dr, good scientists, good master all are gone to abroad thanks is very small may
God bless you with health and wealth
Very important knowledge provide this video. thank a lot sir.
How much i see ur videos sir its too much value added to us ur doing great work
Very nice sir ji super
I thank you for informing people about the work. Such information is not easily available. The video is worthwhile
Dhanyavad sir bahut achhi information thankyou sir🙏
Sir bahut hi sahi jankari the
Thank you for the valuable lecture and demo .
Bohoot hi khub video.
Sir NTC wala system bhi please detail me explain kijiyega 🙏. Bahut hi acha samjhaya sir aapne
Good experiment sir.....
Thanks you for your important information
Best jankari sir
Bhut badiya maza aa gaya
thank you sir for valuable information
Very good information. Thanks
Bahut bahut dhanyavad
Very useful Infomation . Appreciateable
👍👍👍
Bhut badiya sar
Your explanation is very nice & informative sir,
This Information not easily available sir,
This lesson very useful for technicians.
🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻
sir usually NPN aur PNP pair ke Hfe main difference hota hai......PNP ki reading usually ziada hoti hai
🌹Thank you sir,for useful information 🌹
Sir ye video bahut achha raha, class H ka n channel ka 2000 watts ka video banaiye please.
Bhut Accra Sanjay
Bahut Behetrin Sir ....
बहुत सुन्दर ।
Good information sir... Thanks for the video.
Sirji Namaskar
Bahut achha laga. Nice explanation. NPN transistor amplifier is best. But mostly complimentary vpair like 3055 2955 or 5200 1943 or 5198 1941 are being used in output stage. Moreover while measuring Hfe gain with DMM same transistor shows different different gain in case of c5200 or ttc5200 purchased at different time interval from different online sites / shops. Batch mfg. Main aisa hota hai. To kya batch match karke kharidna hota hai. Aap jaise fail karke reject kiya hai, waise to kharida gaya transistor ko kaise use karein, is par ek nuskha bataiye please. Yeh janiar bhi bahut jaroori hai.
Thanks a lot sirji. Aap ne bilkul sahih bataya hai. Keep it up.
Mast
Nice video sar
Great 👍👍👍👍👍
Nice video,
Next one, make like this, thank you
Acha
Sir ek video ntc se amplifire
bysing voltage control karne ke liye banao
Nice idea for using NTC on the transistor heat sink to control the hfe.
Super sir
Very nice
vry nice sir.. kitna upar niche tak consider kr skte hain value???
Very very thank you sir🙏
Ur great sir 👍
धन्यवाद भाई साहब
Sir npn transistor ka undar 5401 or a1015 konsa sahe hoga use ka liya transistor ka input stage ka amplification ka liya. ..
Nice video sir.. sir ahuja amplifier ka fault finding ka video banaye..up jitne amplifier ka video dalehe sab real he...apka channel me video se bahut kuch sekha hu.....thank you sir (wb purulia)
Awesome bhai
Sir ntc senser ki video banao sath hi kaha use krna h or amplifier me uska circuit kese banaye
Verry nice sirso thanks 🙏🙇🙏🙇
Thank sir ji you have awesome knowledge
Very very nice sir ji👌👌👌👌👍
Good information Sir ji , thanks
sir aik mosfet Tansistor ka transistor banaiye
Good information sir, sirf driver stage kahi hfe check kate hai ya out put stage kaa bhi.....
Driver stage ke transistor ka Hfe value 100% match karna best hai. Output stage ke transistor ka value Agar 100% percent match hua to bahut hi Achcha result milega but itne sare transistor ka hfe value match karna possible Nahin Hai isliye emitter resistance lagaye jate hai jo hfe ko balance karte hai
@@AmplifierWorld thanks for feed back....
merey Ustad ji hamesha output main NPN transistor use karna pasand kartey they
Nice video sir 🙏👍👌
Sar ntc ka video banao
👏👏👏👏🙏🙏🚩🚩🇮🇳🌹🌹
Thanks for sharing your topic on hFe of transistors. This helped me lot. I had prepared corel files for so many npn and pnp complementary pairs at output and driver stage. Also collection of both pnp and npn output transistors most commonly used in amplifiers. But today, your lucidly explained on hFe broadened my knowledge.
So now I can concentrate on NPN transistors with having almost likely same hFe.
My question here arises that if I make or utilise for home purpose say only 50 watt output, wherein I am not going to utilize the transistors full gain/ saturation, may be half of it's gain. Can I use complementary pairs of C5200 and A1943? Kindly suggest me.
Thanks in advance.
Most output transistor are connected with emitter resistance to match difference of their hfe value you can use very easily 5200 and 1943 pair if there not matching Hfe , emitter resistor will compansate. Only driver transistor are required to match their hfe value but sometime some PNP and NPN transistor has great different hfe value .
@@AmplifierWorld Oh! I could follow your reply. Every pnp and npn complementary output transistor has 2 resistance compensated at its emitter.
So, only driver transistor, say BD139 and BD140 can it be replaced with MJE340 and MJE350 perfect complementary pairs.
Regards
🙏🙏🙏🙏🙏🙏 Thanks sir Worderful
अंदर की बात ! WOW 👍
Kya ise bhi match hona jaroori hai
Sir ntc sa kasa transistor ka baising voltage ko set karu please boliya. ..
Sir 400W ke liye tarnsfarmar konsa lagaye
DEPEND UPON VOLTAGE . BEST TO 70-0-70 HAI TRANSISTOR AMP KELIYE CIRCUIT PCB CHIYE TOA MERE DOST KI CHANNEL LO EK BAR SIRF PLS .th-cam.com/channels/UlqMj7OTkaqUnlA-2NXHlA.htmlvideos
Mera ek question hai... Output stage me c5198 aur a1941 kaise kaam karte hain ? Mere sub-woofer me ye pair lage hue hain. One pair give 50watt. Can you answer it?
C5198 ki 140v and 10amp current capacity hai, ye ek pair 70 watt ka hota hai jo ki hi fi audio amplifier ke output stage me lagta hai. Aap isko dj amplifier ke Driver stage me bhi use kar sakte hai jo ki 20 pair transistor ke base ko voltage and current de sakta hai
@@AmplifierWorld thanks for replying.. kya ek transistor yada garam nhi hoga (due to their hfe difference) ?
I am not seen this type knowledge
Why didn't i got u as my faculty on my engineering days😊😊😊😊
,😆😆😆
OK sr super
Sir अगर ntc miss match hai to humming ayega baising voltage set karne se
NTC mismatch hone se huming per Koi Fark Nahin Padega
Sir 5200 aur 1943pair me use Karna sahi hai
आउटपुट स्टेज के ट्रांजिस्टर की एच एफ ई वैल्यू मैच नहीं करने से भी चलेगा लेकिन इनपुट स्टेज और ड्राइवर स्टेज के ट्रांजिस्टर की hfe वैल्यू मैच करना बहुत जरूरी होता है और उससे एंपलीफायर की बहुत सारी एरर वाली प्रॉब्लम सॉल्व हो जाती है जैसे डीसी ऑफ सेट और वन साइड ओवरहीटिंग
Sir transistors ke uper ek serial number hota hai jese 5200, 1943 per (907 , 909) is number ka kya effect hai iske baare me b bataiega.
Batch no.
Local 60watt pa amplifier ka circuit diagram bataye pls jisme teen transformer hote hai driver board nahi hota
th-cam.com/channels/UlqMj7OTkaqUnlA-2NXHlA.htmlvideos EK BAR PA SYSTEM DHEK LO FIR MAT PUCHNA KISI KO . 30WATT - 1000W KA DATA AND PCB FILE HAI .
Thank u so much Sir
I have received an amplifier for repair ( Ahuja SSA 250 M) all the power transistor numbers are rubbed off. Can you please tell me the correct number of the power transistors ?
Please visit my 250 watt pa amplifier circuit diagram video
Please visit my 250 watt pa amplifier circuit diagram video
@@AmplifierWorld Is it the same circuit as Ahuja SSA 250 M ? Thank you
@@maxxsmaxx1901 not100%sure but almost same
@@AmplifierWorld Thank you
Thanks for that
Thank you sir...
Transistor bising voltage ko control karne ke liye NTC kaise lagaen kis number ka Laga y
NTC depend on circuit design
Hi shir ok ,hit sink me snsar keshe kneksan kre deedar bod me kha kre btane ki kripa kre
हीट सिंक सेंसर को मेन हीटसिंक के ऊपर लगाना है और ड्राइवर बोर्ड में उसका अलग से सर्किट होना चाहिए, जो कि अभी तक किसी यूट्यूब वीडियो में डिटेल्स में नही बताया है। मैं बाद में इसपर वीडियो बनाऊंगा
Sir driver board ka pcb ke bare me batao sir pls
Please wait, jarur bataunga, thanks
Bahot bahot thanks sir am waiting
th-cam.com/channels/UlqMj7OTkaqUnlA-2NXHlA.htmlvideos YHE DHEK LO SARE PCB MILE GE ... MERE FRIEND KA CHANNEL HAI.
Sir ntc kya hota hai
NTC Ek type ki resistance hoti hai Jiski value temperature badhane per kam Ho Jaati Hai
सर, ज्यादा तर Amplifier pnp or non transistor ke hi hotel hai ! तो उसमे कैसा करें , और Market मैं transistor कोनसा खरीदा जाये ? इतना बताईए सर , 🤔🙏
Aap npn and pnp me amplifier board banane ja rahe hai to har ek transistor ka hfe value lekar lagaye, aap shop par hi sabhi transistor ka hfe lekar aur almost same value vaale transistor le sakte hai, but shopkeeper manana chahiye, company me jo amplifier bante hai usme company lot me transistor kharidti hai jisase same hfe value match karne me aasani hoti hai
समझाने के लिए धन्यवाद सर!🙏
सर, मेरी रीकवेस्ट आपने पूरी नहीं की ? जो DC to DC कनवर्टर बनाने की , जो कार सब्ब ऊफर amplifier चला सके ? ,👋👋
@@vijeshwarkhobragade6797 vo bhi puri kar denge bhai,
Hfe valu to far kasa match kara
Something wrong something right information in case we make an amplifier without output transformer we can ignore hfe value in driver and output stage if we make an amplifier with output transformer , hfe value create major problem.
You are very much right. How many transistors we have to reject? Moreover same transistor purchased at different times, different batch, different shops, different mfg co. Hfe varies. End result would be Driver or Output transformers, where DC isolation is also there which protects Speaker also. Please inform any circuitry available with output transformer.
Thanks in advance.
Sar ji aapka shaadi Ek Bar counter kar sakta hun
Good
Nice