Simple 10W audio amplifier
Description.
The circuit given below is of a simple audio amplifier that can deliver 12W to an 8 Ohm speaker. Op amp IC TL081 is used as the preamplifier here. Actually any opamp with matching power supply ratings can be used instead of TL081.Transistors Q1 and Q2 (TIP125 and TIP120) comprises the power amplifier stage. Output is taken from the collector junction of two transistors.
Circuit diagram.
Notes.
- The circuit can be assembled on a Vero board.
- Heat sinks are recommended for the transistors.
- A +15V/-15V dual DC power supply can be used to power the circuit.
- It is better to mount IC1 on a holder.
can I use this to connect a pair of speakers to my tv?
Hi Andy yes. the line output / ear phone out put of the tv can be fed to this amplifier and you can connect the amplifier output to two speakers of 4 ohms in series to maintain 8 ohms load.
hi seetharaman…i always see your post here CT…can i ask something?do you have circuit of wireless headphone?please teach me for that diagram please i really need that project.thank you..hope you can send me a circuit,THANK you!