LM1875 Hi - Fi Amplifier Board, Assembling and Audio Test, हाई फाई एम्पलीफायर
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- เผยแพร่เมื่อ 24 ก.พ. 2023
- Disclaimer : This is not a paid review. I have selected best PCBs available in Indian Market. You can buy whatever you feel better.
Assembling and Audio Test of LM1875 based Stereo Hi Fi amplifiers. Based upon PCBs provided by @indianxtremeaudio and @UltimaxAudios
For Buying the Project kindly contact on below given Phone Nos.
Indian Extreme audio : Contact - 8383936916 Rahul Sharma, Call time is - 11 to 6 PM
Ultimax Audios : Contact- Suraj Verma- 78219 21789 (only complete board available, no bare pcb, Refer to code WITF60 and get discount, discount will be applicable, when 2 or more products will be ordered.) *To avail the discount, Customer have to, 1• Give Subscribed Screenshot of channel " What I Think"
2• Must Give Discount code: WITF60
एम्पलीफायर खरीदने के लिए यहाँ क्लिक करें :
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Details:
FEATURES DESCRIPTION
The LM1875 is a monolithic power amplifier offering • Up to 30 Watts Output Power
very low distortion and high quality performance for
• AVO Typically 90 dB consumer audio applications.
• Low Distortion: 0.015%, 1 kHz, 20 W
The LM1875 delivers 20 watts into a 4Ω or 8Ω load
• Wide Power Bandwidth: 70 kHz on ±25V supplies. Using an 8Ω load and ±30V
• Protection for AC and DC Short Circuits to supplies, over 30 watts of power may be delivered.
Ground The amplifier is designed to operate with a minimum
of external components. Device overload protection • Thermal Protection with Parole Circuit
consists of both internal current limit and thermal
• High Current Capability: 4A shutdown.
• Wide Supply Range 16V-60V The LM1875 design takes advantage of advanced
• Internal Output Protection Diodes circuit techniques and processing to achieve
• 94 dB Ripple Rejection extremely low distortion levels even at high output
power levels. Other outstanding features include high • Plastic Power Package TO-220
gain, fast slew rate and a wide power bandwidth,
large output voltage swing, high current capability, APPLICATIONS and a very wide supply range. The amplifier is
• High Performance Audio Systems internally compensated and stable for gains of 10 or
greater. • Bridge Amplifiers
• Stereo Phonographs
• Servo Amplifiers
• Instrument Systems
Connection Diagram - วิทยาศาสตร์และเทคโนโลยี
We appreciate all your feedback, Regarding our 1875 Stereo Amplifier Board. Thank you for bringing this issue to our attention. All this will be improved in v2 of the same board.
Our pleasure!
#mukeshdhakar
Bahut achhi , jarurij, aur kaam ki jankari di hai sir apne
Thank you for making such videos. Nowdays ,sadly no companies are focusing on quality, all companies are focused on quantity only.
i have discrete lm1875 circuit .i make at past to check . it freaking amazing .
In my 5.1 subwoofer section this ic used and giving very good bass.....
Sir...
Well explained! Thank you!
Bhai maine LM 1875 1876 kia hai. Good audio quality. Maine LM 3886 bhi kia hai.
Magar mera favorite IC of all times is TDA1514A.
Quality aeisa hai ki koi IC aajtak takar de nahi sakta.
Maine comment kia kyun ki aap hi hai jo real knowledge sharing karte hain.
Sir i learned lot of knowledge from you i respect you by heart. You are great teacher.
Many many thanks
Nice information Thanks you're knowledge Art of electronic music 🎶 🎵 world 🌎 👌
धन्यवाद सर
सर आप जो व्हिडिओ बनाते है बहुत ही युजफुल होते और ज्ञानवर्धक होते है
मै पूछना चाहता हूं के डी क्लास का ऑडिओ बोर्ड अगर आहुजा ऍम्प्लिफायर मे सेट किया जाता है तो कैसे कर सकते है उसके उपर व्हिडिओ बनाईये
Aapki video ka wait karta hun Sir
❤you Sir
Sir ji audio sunke maja aa gaya
Zabardast. Very good information giving us. Thanks
Thanks for liking
Mast sound hai bhaiya
Plzz..sir..Amra apner kache thaka ei review type vedio chaina ... tutorials type vedio chai...jatom apni agabanaten..♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️👍👍
These ic give great quality sound output as i use 5.1 sony amplifier
I have 5 pcs of original unused TDA2030A, thick legged/pinned. Will use them once I find the perfect board for them
Ak nambar sir ji
Vah maza aa gaya
Gazab sound
Good👍
Very nice bro
We appreciate and watch all your reviews. I enquired Indian Xtreme Audio 7 days back, however the board was not available with Mr. Rahul. However here you are reviewing this board. Did you purchase long back?
I have original sanyo la4440 ic which is almost 24 year old but it's sound is superb
I have original ic of Sonyo 4440 , 4445,4441 .it really great at 2 ohm load and best for 12 v amp
Good bro
Good to see LM1875T
Yes....
Please add one more Bluetooth circuit 👌😍
Superb quality
Thank you so much 😀
itne saare LM1875 ic ! 😱
Hi,
I love the way you explain every thing by using lay man terms. Thanks a lot.
I had a question, can we use this IC's in Bridge Application and what watts output will be there? What are the safety measure to be taken?
💐🙏🏻👌🏻
For the best audio quality try Nelson pass ACA amplifier. They are great!
Very nice video Clean and sweet audio
Thanks
Oh...! What an amplifire...!
Can i get a complete board Sir...?
सुपर 👌🏻👌🏻👌🏻
सर जी आप 5.1 पर 200w में कोई अच्छी सी
Ic में बोर्ड डिजाइन कर बनाएं एवं बताएं
हम भी आप से कुछ अच्छा स सीखें 🙏
OOOOOOOld is GGGGGGGGGGGOLD
First Comment........
Thanks
It was not expected from you at all that you would promote others to buy circuit boards. Only for money. Everyone used to like your theory videos more. Everyone would love to have you on your trend again. 🙏🙏🙏🙋♀️🙋♀️
i make my own variant of lm1875 with real class G mode . it best ic for hifi audio . my varient beat lm3886 . boosted output pure 75w rms .
How did you managed to attch big heatsink ?, I once broke pin legs due to heavy heatsink
Thank you sir diy circuit ka video kab aega
Sir ji, TH-cam par audio quality achhi nahi aati, Spotify app par audio quality maintain rahti hai
Thanks
Dear Sir, can i direct replace to LM1875 with TDA 2030 in my INTEX 5.1 Channel home theatre, without any more changes in amplifier kit ???
Sir ji, Sgs Thompson company jo tda Ics banati thi usko jab St microelectronics ne acquire kar liya uske baad hi 2013 mein unhone sare popular analogue Ic bandh kar di aur market mein unki duplicates hi High price mein mil rahi hai ab. Same case National semiconductor ka hua jab Texas instruments ne unki company le li aur sari purani Ics bandh kar di kyuki unke mutabik company inn Ics se Profits nahi kama pa rahi aur ab unki bhi duplicates chha rahi hai market mein
Single ic se 50watt speaker chala sakte hai kya ?
sir, isme negative voltage or positive voltage dono output par aaatee hai ki nahi
Sir soundking sk25000 ka review kijiye
SIr please reply
2.1 lm 1875 board costs about 400 rs
But gives studio quality sound
Requires about 4 12-0-12 supply
However
A good tpa 3116 D2 2.1 module costs more but requires only single supply of like 15 volt
Taking into account the cost of 15 volt SMPS or 12 0 12 transformer both cost almost the same what should I choose
Aim - to build a mediocre basic low level custom 2.1 amplifier embedded in a subwoofer cabinet of with sub 4inch
4 ohm (base)
And 3 inch speaker (mid) and twetter ( with / without crossover network that I have not decided yet )
Ofcourse both of the board have a output of about 100 watt as claimed by the manufacturer
Sir ye ic birdge mode chale sakti he plese batye
Sir mare tda 7294 ic ke amplifier mai kam volume mai clier aawaj nahi aa rahi hai kaya karu
Sir 2030 ke sarkit me lm 1875 ko lga sakte h keya
सर इसमें स्पीकर का चुनाव भी बता दीजिए।
Sir (1619 AM FM I.C) production mein hai kya?
Sir ap jo High wattage amplifier par work kar rhe hain uski videos kab ayengi....?
jaldi hi...edit ho rahi hai
Like me sir, I am too a fan of class AB amplifier and IC
Great
High voltage ki amplifier ki video live
Sir I have problem in iot201bte amplifier when I turn it off it turns off with annoying pop sound which even can harm the speakers. Please provide the solutions for the problem.
12 0 12. 5 ampere chaltha he???
Sur kabhi tpa1557q testing kijiye pilyes.
Tpa1557 ic ki quality achi hoti hai kya sir
Sir original tda ICs kaha se mile gi please bataiye.
Thanks for the detailed review sir, I commented below on one of your earlier videos too, but you must not have got the time to reply.
I have a query regarding the IoT bass treble cum Bluetooth board, the board is tonally very good and has a beautiful sound, the issue being that when added to an amplifier it has a high shut down pop sound when switching off the amp and BT board together, no matter what speaker protection is used. Maybe the filter capacitors are of very less capacity and get immediately discharged. I have tested with the tpa3255, 2sc5200 board etc. Please comment sir. Thanks!
Thanks for your feedback. Use seperate power supply for preamp with larger filter capacitors.
@@WhatIThink thanks a lot for the feedback sir, God bless you 🙏 you have been a huge inspiration to me 🙂
Sir best 400 watt stereo board bata dijiye hi-fi ke liye
Lm1875 Ic abhi duplicate hi mil rahi hai jo dekhne mein Tda2030A jaisi hai matlab sides mein do cut marks hai 2030 jaisi chahe kahin bhi kharid lein online offline same yahi duplicate wali hi milti hai Rs 20 se 100 rupaye per piece tak milti hai. Sirf ek hi khaas baat hai ki yeh duplicate 1875 Ic +/ 16 volt transformer se bhi chal jati hai blast nahi hoti par watts ka pata nahi 10-15 watts shayad mil jati hai 4 ohms par☺️
Sir market me ye board to milte hi nahi 😢maine socha tha is ic se sattelite use karta or bass ke liye 100 watt ka mono sc5200 sa1943 use kar leta
Sar ap 5198 and 1941 transistor amplifier ke bare me kuch video baniye, please
Lagabag same result hai tta 5200 jisa .
Sir kripaya kar meri samasya ka samadhan kijiye Sony home theater ka saman nahi mil Raha hai uske liye koi powerfull kit batayen
1. Utc aachi company hai kya
2. Or ye logo kis company ka hai 5 type me.. jo lm3886 pr bhi aata hai .. lm q1875 pr texas ka to nhi lg rha
Sir ham kaise class AB and class d amplifier ko ek Bluetooth card se kaise chalayen
Class A amplifier full review and makeing. Jean heraga 30watt.
It not available in india bro . We need to make it also need water cooler level of cooling .
Sir original LM1875 ic kha milegi?
I am new subscriber you Sir yah board mujhe Milega ya nahin comment reply please sir
Description me phone no diya hai... Waha contact kijiye
Frist views
Super
maybe compare them with the utc 2050Ls that are available in India. Also does anyone know of a good online source to buy lm1875s from?
How many you need
sir aapne jo banaya hai bo kitne me milega
Sir Ek complete board chahie aapke Hath se please Sir please Milega ya nahin please comment reply sir
Bro Mera pass 18 0 18 3amp toroidal transformer ke 5.1 home theatre hain
Mera home theatre ka audio board kharap ho gaya
Ab new board nahi milraha he
Tumhare pass he kya
Sir Kya 2030&2050 ki jage par 1875 ic laga sakte hain
Yes
Sir board milega
Sir yah my favourite bird to Ic lm1875 board Humko chahie please share price please
Dake bass a humming bass, vibration bass,ki vabe banabo circuit diagram ta video kore dekhan.ic ba transistor die PLEASE PLEASE PLEASE
apni Hindi te bolun tobe yeni bujhte parbe ba English ye comment koro
Hello sir please can u get me dis orginal ic... Fr me....
can v use 20 0 20 5amps for fake ic...
No. It has no protection circuit on its small die. Use less than 12-0-12
Sir ji isko bring krke power baraya ja sakta hai 4 ic deke
Yes
Sir mughe 200w tpa 3116 2.1 bord chahiye
Jishme frequency control ho kon sa le
bahut saare video hain....please watch.
Sir mai aapke sare video dekhta hu
2017 se hi apki video dekhta hu
TDA8954Th class d amplifer 420w+420w Digital Audio Power Amplifier Board
Review this bord
Already done
12 volt Mein 200 watt ka amplifier assemble Karke bataiye na sar bombay se
12 v se 200watt nahi milta . Boost converter wala amplifier hona chiye
You said in the video that Texas instrument comany name was previously National semiconductors is factually wrong.both were established seperately long before, thereafter Ti overtook the national semiconductors.
National was taken over by TI... That's what I said
Isme koi bhi original LM1875 nehi hai. Yeh JM Semiconductor ka hai. Genuine Texas Instruments ka dikhne mein alag hai bhaia.
What used in white print is original and from old stock. New ics have laser itched markings
@@VIPINSAINI_20 JM series is Chinese ripped off version. It will never sound as good as the genuine one from Texas Instruments. See how the genuine one looks like.
www.indicatorsupport.com/LM1875.jpg
@@WhatIThink Not only that, these JM with National Semiconductors logo has many variants of LM2596, LM2576 . They are cheaper so people buy them, but these are Chinese ripped off version. Failure rate and sound quality for Audio ICs will really kill you. Do not buy counterfeit semiconductors unless budget is low.
Sir ji mfd aap jada lagane bolte hai itna darkar nhi hai
Could you share the source of the original LM1875, please?
Contact vipinsaini from comment box.
@@WhatIThink He has already shared the pics with me over fb chat, but I am unsure about the package, hence a bit hesitant to get them
@@cocococololololo I don't remember sharing pictures of LM1875T with you,
Can you share your name
@@VIPINSAINI_20 You shared the pics with Zeus Audios, and he shared them with me as I was looking for them, long back
@@cocococololololo I didn't know anyone with that name
Nor do I care about it
LM 1875 has good audio quality
Sir aap ke pass koi achha bass tareval bord hai sir aap apna number dijiye please
Sir kya lm 1875 ki 2ic ko bridge kar sakte hai kya
Yes.