Power Amplifier

IC TA7066P is original monolithic Intregated Circuit Audio Power Amplifier. Package IC is SIP10-16 and manufactered by TOSHIBA.  The above sequence is a series of low-grade intregated circuit amplifier , which was very small output . But this amplifier is very high impedance power output. For more details , see description below. Technical information : Min. Voltage   : 8   Volts DC Max. Voltage  : 25 Volts DC Max. Power    : 0,3 Watts Impedance      : 150 Ohms Min. Currents : 2,8 mA

This circuit use IC TDA1004A to main operation .IC is very nice and durable if used properly and correctly, by the way supply the correct voltage , don't supply more voltage than 20 volts, because it can damage the IC. This circuit suitable for subwoofer speakers, but this amplifier  is mono.See schematic and troubleshooting below : If the circuit above not working , posible cause is on : Supply voltage. IC Damaged or installation inverted. Component damaged . Installation components inverted. Line break PCB. Input not connected or input connect to ground. Output speaker not connected.

This is power amplifier circuit using IC AN7108 as based for amplifier. See this circuit diagram below: Datasheet IC AN7108 Vcc                = 1-6,6 V Pout               = 2X 30 mW RL                 = 32 Ohm Ft                   = 20-20 Khz Icco               = 14 mA Package         = DIP-16 Manufactered = MATSUSHITA

This Circuit Audio Amplifer with IC TBA 611 require voltage  4,5 to 15 Volt. I recomended to this circuit supply with 12 volt . Output audio is mono with power 1 Watt. See this circuit and datasheet IC TBA611 below: Datasheet IC TBA 611 Vcc                = 4,5-15 V Pout               = 1 W RL                 = 8 Ohm Ft                   = 50-15 Khz Icco               = 10 mA Package         = TABS4-14 Manufactered = RFT

Circuit Audio Amplifer with IC TBA810 See this Circuit Below: Datasheet IC TBA 810 Vcc                = 4-20 V Pout               = 7 W RL                 = 4 Ohm Ft                   = 30-18 Khz Icco               = 13 mA Package         = TABS3-12 Manufactered = ITT other IC TBA 810 , In this circuit you can use the following  IC  :  A205K A208E A208K A210E A210K DG810 K174YH7 K17YH9 MA873 TBA310AS TBA790D TBA790U TBA790S TBA810AS TBA810AT TBA810DS TBA810DAS TBA810S TBA810T TCA15OD TCA15OU TCA15OS TCA15OT TCA830 TCA830A TCA830S TCA940 TCA940E UL1440 UL1481P Equivalent IC TBA810

See below this circuit: Datasheet IC TDA 1521 : Vcc                = 6-30 V Pout               = 2X 6W RL                 = 8 Ohm Ft                   = 20-20 Khz Icco               = 40 mA Package         = SIP 1-9 Manufactered = Siemens

Technical information Datasheet IC 5G37 Vcc                = 6-12 V Pout               = 0,4 W RL                 = 8 Ohm Ft                   = 40-17 Khz Icco               = 15 mA Package         = TABS1-14 Manufactered = China