- Expected Price (Rs)
- 1927
- Shipping from
- New Delhi
- Item Condition
- 5 out of 5
- Payment Options
- Cash
- Bank Transfer
- Purchase Date
- Aug 6, 2019
- Shipping Charges
- Excluded - at actuals
- Have you provided two pics?
- Yes
- Remaining Warranty Period
- None
- Invoice Available?
- No
- Reason for Sale
- Selling extra bought items.
Description Audio IC : The Texas Instruments LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4Ω or 8Ω load with less than 0.1% THD+N.
You can verify source of purchase and price of each critical component, have provided the links in the table (stock no). Some products are locally bought.
Output Power (Continuous Average)
THD + N = 0.1% (max), f = 1 kHz
|VCC| = |VEE| = 22V, RL = 8Ω 20W/channel (Typical)
|VCC| = |VEE| = 20V, RL = 4Ω 22W/channel (Typical)
(VEE = Negative voltage, VCC = Positive voltage)
Transformer required:
Transformer* for 4 Ω speakers: AC 12-0-12, 80/100 VA or 14-0-14, 80/100 VA
Transformer* for 8 Ω speakers: AC 15-0-15, 100 or 120 VA or AC 18-0-18, 100 to 120 VA
*do not increase recommended voltage as there is no need.
Heatsink (you have to buy)
Size in inches: W x H x D | 5 x 3 x 2
Actual output during test
AC transformer used : 14-0-14 secondary AC voltage (“0” means ground)
Input audio signal : 1kHz
Speaker used : 8Ω (Ohm)
Output RMS power measured : 12.7 volt RMS
Output in watts : 20.16 Watt each channel for both channels it is 40 watts
Component list and verification links
Important information: Please see the image for rectifier installation.
Sound is very pleasing and it can drive old unused bookshelf speakers.
Minimum requirements:
· Buyer must have some knowledge of electronics
· Must know polarity sign printed on the electronic part and on the green PCB
· Must know how to solder the electronic components on the PCB
· One transformer
· One heatsink
· Wires for connections
· Case for the amplifiers
· Audio in jack or input socket (left/right)
· AC power in socket
· AC power cord
· Two speaker sets (4, 6 or 8 ohms)
Warning:
If you do not know what you are buying, please don’t buy.
Do not solder electronic parts incorrectly for e.g., soldering a capacitor positive lead in the negative hole.
1. The products don’t come with warranty. However, I shall check each item before sending.
2. Age of products: 4-5 months old, unused.
3. The completely installed unit displayed in the thread is for representation only. My friend had bought it and currently using it.
4. Reason for sale: I wanted to buy genuine good quality components such as Nichicon/Panasonic/Wima capacitors, these capacitors sold on minimum quantity basis for eg. 5 pieces, 10 pieces etc. Hence, selling extra components.
New Delhi buyers preferred
Thank for reading
You can verify source of purchase and price of each critical component, have provided the links in the table (stock no). Some products are locally bought.
Output Power (Continuous Average)
THD + N = 0.1% (max), f = 1 kHz
|VCC| = |VEE| = 22V, RL = 8Ω 20W/channel (Typical)
|VCC| = |VEE| = 20V, RL = 4Ω 22W/channel (Typical)
(VEE = Negative voltage, VCC = Positive voltage)
Transformer required:
Transformer* for 4 Ω speakers: AC 12-0-12, 80/100 VA or 14-0-14, 80/100 VA
Transformer* for 8 Ω speakers: AC 15-0-15, 100 or 120 VA or AC 18-0-18, 100 to 120 VA
*do not increase recommended voltage as there is no need.
Heatsink (you have to buy)
Size in inches: W x H x D | 5 x 3 x 2
Actual output during test
AC transformer used : 14-0-14 secondary AC voltage (“0” means ground)
Input audio signal : 1kHz
Speaker used : 8Ω (Ohm)
Output RMS power measured : 12.7 volt RMS
Output in watts : 20.16 Watt each channel for both channels it is 40 watts
Component list and verification links
| SN | Stock No. | Part type | Description | Qty. Pieces | Price |
| 1 | 533-9678 | Amplifier IC | Texas Instruments LM1876TF/NOPB Speaker Amplifier, Class-AB Stereo 7.5MHz 80dB, 15-Pin TO-220 | 1 | 562.64 |
| 2 | 116-925 | Capacitor | Panasonic Aluminium Electrolytic Capacitor 22µF 35 V dc 6.3mm Through Hole KS Series Lifetime 1000h +85°C | 2 | 49.74 |
| 3 | 684-1999 | Capacitor | Vishay Aluminium Electrolytic Capacitor 4700µF 35 V dc 18mm Through Hole 038 RSU Series Lifetime 3500h +85°C | 2 | 454.30 |
| 4 | 855-8702 | Resistor | Vishay AC03 Series AC Axial Fixed Resistor 4.7O ±5% 3W | 2 | 109.88 |
| 5 | 108-2700 | Capacitor Film Wima | WIMA 100nF Polyester Capacitor PET 100 V dc, 63 V ac ±10% MKS2 Series Through Hole | 2 | 72.72 |
| 6 | 108-2980 | Capacitor Film Wima | WIMA 1µF Polyester Capacitor PET 100 V dc, 63 V ac ±10% MKS4 Series Through Hole | 2 | 137.76 |
| 7 | 228-6767 | Capacitor | Panasonic Aluminium Electrolytic Capacitor 100µF 35 V dc 6.3mm Through Hole M Series Lifetime 2000h +85°C | 1 | 20.85 |
| 8 | 148-792 | Resistor | TE Connectivity LR1 Series Axial Metal Film Fixed Resistor 18kΩ ±1% 0.6W ±50ppm/°C; | 1 | 5.96 |
| 9 | 1126955 | Resistor | MCMF0W4FF2202A50 - METAL FILM RESISTOR, 22KOHM, 250mW, 1% | 4 | 9.44 |
| 10 | 1126919 | Resistor | MCMF0W4FF1001A50 - METAL FILM RESISTOR, 1KOHM, 250mW, 1% | 4 | 4.72 |
| 11 | 537-3498 | Capacitor-Ceramic MLCC | AVX 100nF MLCC 50V dc ±10% Axial SA115C104KARC | 1 | 16.87 |
| 12 | 704-7841 | Capacitor | Rubycon Aluminium Electrolytic Capacitor 100µF 35 V dc 8mm Through Hole ML Series Lifetime 5000h +105°C | 2 | 55.22 |
| 13 | NA | PCB | Printed circuit board bought from aliexpress.com | 1 | 300.90 |
| Parts bought locally | | 0 | |||
| 14 | NA | Standoffs | Standoffs (Pads) | 4 | 40.00 |
| 15 | NA | Rectifier | 6 Amp Bridge Rectifier | 1 | 40.00 |
| 16 | NA | Wire to board | 3 pole wire to board connector (Blue) | 1 | 10.00 |
| 17 | NA | Wire to board | 2 pole wire to board connector (light green) | 2 | 30.00 |
| 18 | NA | 3 pin header | 3 pin header for audio input | 1 | 1.00 |
| 19 | NA | Audio-in Cable | 3 pin audio in cable | 1 | 5.00 |
Total | 1927 |
Important information: Please see the image for rectifier installation.
Sound is very pleasing and it can drive old unused bookshelf speakers.
Minimum requirements:
· Buyer must have some knowledge of electronics
· Must know polarity sign printed on the electronic part and on the green PCB
· Must know how to solder the electronic components on the PCB
· One transformer
· One heatsink
· Wires for connections
· Case for the amplifiers
· Audio in jack or input socket (left/right)
· AC power in socket
· AC power cord
· Two speaker sets (4, 6 or 8 ohms)
Warning:
If you do not know what you are buying, please don’t buy.
Do not solder electronic parts incorrectly for e.g., soldering a capacitor positive lead in the negative hole.
1. The products don’t come with warranty. However, I shall check each item before sending.
2. Age of products: 4-5 months old, unused.
3. The completely installed unit displayed in the thread is for representation only. My friend had bought it and currently using it.
4. Reason for sale: I wanted to buy genuine good quality components such as Nichicon/Panasonic/Wima capacitors, these capacitors sold on minimum quantity basis for eg. 5 pieces, 10 pieces etc. Hence, selling extra components.
New Delhi buyers preferred
Thank for reading
