35 + 35 = 70 watts amplifier

hi , people .... here's the circuit diagram and the list of components of this 35 + 35 = 70 watts amplifier....
this amplifier has the following characteristics...
1. Easy to built..
2. Pure sound quality.
3. High gain.
4. Cheap (maintenance)
5. Supports more than 100 watts 10 or 12 inch speakers... ( 3 way speaker system )
            

                                                          (( Circuit diagram ))

(( circuit components ))

All these components are easily available in market all over in Pakistan and other countries 

  component name              price                        quantity

                              

 1 . Tda 2030 ( IC )            Rs. 30                        4

 2   Resistors                       Rs. 10                      22 K (10)

                                                                           1 ohm (4)

                                                                          680 ohm (4)

3 . Capacitors                    Rs. 15                      2.2 uF  / 50 VOLTS (2)

                                                                         100 uF / 50 VOLTS (4)

                                                                         104 (4)

                                                                         224 (4)

4 . Circuit board                Rs. 20                      1 or 2 (depends)

5 . Jumper wires                Rs. 20                      2 sets (minimum)

6.  Heats sync's                 Rs. 50 each              4 or 2

   These above are the circuit components and their price lists ... the prices may vary from shop to shop but not much..........

                         The proper power supply required for this circuit is built as in this circuit diagram 

                                                  (( Power supply circuit ))

the power supply above is showing output of 45 volts dual where as for this circuit (under discussion) does not require such a large voltage to operate ... it operates fine between the range from 15 - 18 volts..

the capacitors should be minimum 3500 uF's as they are of 4500 uF's in the above circuit ... where as the connections are same as in above circuit diagram ...

(NOTE)

The transformer which is used must be (( CENTER TAP )) with voltage ranging ( 15 - 0 - 15 )

Components of  ((power supply))

      

      Center tap transformer ( 15 - 0 - 15)                      (1)                          Rs. 150 / 120 

      

      Diodes 1N4004                                                     (4)                          Rs. 4

      Capacitors ( 3300 uF/ 50 VOLTS )                       (2)                          Rs. 50 (both)

      

         

      if you design this circuit of ur own then it will cost only Rs.450 approximately , but if u r willing to purchase 

the designed circuit then it is of  Rs.1000 ( with 6 months warranty )

                  

       If u have any questions regarding this small project then do comments ..... i will help u 

thanks for visiting our link...

regards : BLAZE corp. LAHORE PK

the other projects will be uploaded soon along with the videos..... the circuits which are uploaded in this link  are completely free of errors and are tested many times.... so , dont b in any doubt about these circuit diagrams..... they are 100 % working and tested many times...

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