TDA7388 audio power amplifier 164W circuit diagram.

TDA7388 audio power amplifier 4x41W. DESCRIPTION  The TDA7388 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7388 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced … Read more

Base booster Circuit For Subwoofer

Bass Booster Circuit For Subwoofer What does subwoofer mean? A subwoofer (sub) is speaker, that is dedicated to the reproduction of low-pitched audio frequencies most commonly referred to as bass. Passive Sub: Passive subs are called passive because they need to be powered by an external amplifier or Audio/Video (A/V) receiver What makes a subwoofer … Read more

BOOTMGR is missing | solutions

BOOTMGR is missing; Press Ctrl+Alt+Del to restart When you turn on a computer shows that (BOOTMGR is missing) and when use that ( Press Ctrl+Alt+Del) command still the same. HDD not detected , go to Bios, boot option and check if  HDD appears or not. Usually means that there is no operating system installed or booting … Read more

Simple And Powerful Stereo Bass Amplifier 200W.

200W Powerful Stereo Bass Amplifier with D718 Transistor. Now I Am Sharing With You Stereo Amplifier Your Need :   CIRCUIT DIAGRAM.>>>>>   Transistor D718 x 4. Capacitors 2200uf/25v & 10uf/63v x 2. Resistors 82 Ohm x 2 , 47k x 2 & 100k x 2 . @1/4W Potentiometer 47k Dual Cannel . Speaker x 2 … Read more

System battery voltage low.

The CMOS battery / System battery Is a battery which powers the memory for date and time in the BIOS chip. This battery is generally a watch battery. What is a CMOS battery in a computer? CMOS Battery – Complementary Metal-Oxide Semiconductor Battery CMOS is an on-board battery powered semiconductor chip inside computers that stores … Read more

Replacement of 1N4728A 3.3 zener diode

Replacement of 1N4728A 3.3 zener diode Use a series of 2.7V Zener with a normal rectifier diode (2.7+[0.6-0.7]=3.3-3.4V) Use 5 regular diodes in series. Voltage drop across each diode is .7 volts x5 = 3.5volts Use the 5.1 and take the output via 3 diodes forward biased. 0.6 volt drop per diode, you can slash … Read more

HOW TO RESET VITU Mars11 Smartphone

  VITU Mars11 Smartphone   Product Description Brand:VITUModel:Mars11Color:Black,Gold,White,RedOperating System:AndroidOS Version:Android 7Screen Size:5.5 inchScreen Type:IPS LCDDisplay Type:TouchscreenSIM Support:Dual SIMSIM Type:Regular SIM, Micro SIMData:4GConnectivity:WiFi, GPRS, Bluetooth, USBStorage:16GBRAM:2GBProcessor Type:1.3 GHzCamera:Dual-Camera (Front/Back)Camera Type:Primary13 MPSecondary8MPMedia Ports:Memory CardMicroSD Upto 64GBUSBMicroUSB v2.0 Method: Begin by pressing the Power key for a few seconds to turn off the mobile. In the second step … Read more

Getting start a business may be difficult to do. So | here are seven steps for writing a perfect business plan.

BUSINESS PLAN Every business needs to have a written business plan. Whether it’s to provide direction or attract investors, a business plan is vital for the success for your organization. But, how do you write a business plan? Recommends that a business plan include; Executive summary – a snapshot of your business Company description – … Read more