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The following schematic shows 12 W Bridge Amplifier circuit diagram as an application of the TDA2007A a class AB dual audio power amplifier which is designed for stereo application in music centers, TV receivers and portable radios. According to the datasheet, this TDA2007A has features such high output power, high current capability, AC short circuit protection, and thermal overload. via next.gr 12 W Bridge Amplifier circuit diagram

This is the same scheme as the one shown Asymmetric Pre amp, but may seem more simple due to the disappearance of some components. Virtual ground With power of symmetrical type, we do not need the virtual ground, and components that were working for this function have no purpose. Output coupling capacitors? A priori, we should not need coupling capacitors in the signal AF output of the preamplifier, since the resting voltage (no audio signal at the input) is close to 0V continuously. However, I leave to you to decide whether or not to implement them, knowing that the value of the voltage may be present output depends on the op amp used.

18 Watt Audio Amplifier circuit diagram Amplifier parts: P1____22K Log. Potentiometer (Dual-gang for stereo) R1___1K 1/4W Resistor R2___4K7 1/4W Resistor R3___100R 1/4W Resistor R4___4K7 1/4W Resistor R5___82K 1/4W Resistor R6___10R 1/2W Resistor R7___R22 4W Resistor (wirewound) R8___1K 1/2W Trimmer Cermet (optional) C1___470nF 63V Polyester Capacitor C2,C5___100µF 3V Tantalum bead Capacitors C3,C4___470µF 25V Electrolytic Capacitors C6___100nF 63V Polyester Capacitor D1___1N4148 75V 150mA Diode IC1___TLE2141C Low noise, high voltage, high slew-rate Op-amp Q1___BC182 50V 100mA NPN Transistor Q2___BC212 50V 100mA PNP Transistor Q3___TIP42A 60V 6A PNP Transistor Q4___TIP41A 60V 6A NPN Transistor J1___RCA audio input socket

• HCD-SHAKE33 is the tuner, USB, CD player, Bluetooth, NFC and amplifier section in SHAKE-33. • HCD-SHAKE55 is the tuner, USB, CD player, Bluetooth, NFC and amplifier section in SHAKE-55. • HCD-SHAKE77 is the tuner, USB, CD player, Bluetooth, NFC and amplifier section in SHAKE-77. • HCD-SHAKE44 is the tuner, USB, CD/DVD player, Bluetooth, NFC and amplifier section in SHAKE-44D. • HCD-SHAKE66 is the tuner, USB, CD/DVD player, Bluetooth, NFC and amplifier section in SHAKE-66D. • HCD-SHAKE88 is the tuner, USB, CD/DVD player, Bluetooth, NFC and amplifier section in SHAKE-88D. UK Model HCD-SHAKE33 Russian Model HCD-SHAKE66 E Model HCD-SHAKE33/SHAKE44/SHAKE55/SHAKE66/SHAKE77/SHAKE88 Argentina Model- Mexican Model HCD-SHAKE33/SHAKE55/SHAKE77 Australian Model HCD-SHAKE77 Malaysia ModelHCD-SHAKE44/SHAKE66/SHAKE88 Saudi Arabia Model South African Model Thai Model HCD-SHAKE44/SHAKE88 CD mechanism type – CD,90-DVBU202/M Optical pickup – CMS-S76RFS7G SHAKE-77/88D WF (Woofers)/MID (Mid speakers)/TW ...