Preface to 41 Projects Using 741 Op Amp by MC Sharma
The Operational Amplifier IC741 is perhaps one of the most inexpensive IC available in the market. Yet it is comparable to the best of such IC’s in respect of versatility and superb performance. It is, therefore, natural that there is hardly any electronic magazine in the world which does not contain a project using this IC.
This book which is now in your hands contains 41 projects employing this IC. You will find the electrical details of this IC in the book itself, which make them so versatile.
These projects will provide the hobbyist, the experimenter and even the professional, practical experience in making these projects. In this connection, we would like to emphasise two aspects: firstly, good soldering and the use of IC Sockets. It is not proposed to go into the details of good soldering, but, please bear in mind badly-soldered joints will invariably disappoint you in the performance of the project, no matter how well the circuit is designed or how good are the individual components.
Secondly, it is always a good practice to use an IC socket, wire it up and then insert the IC in the socket in the CORRECT way.
At this stage, it will be appropriate to indicate that this IC741 is not capable of driving a loudspeaker directly. Its output is usually connected to an output amplifier stage. At times, however, this IC may be designed to actuate a pair of earphones.
The author Mr. M.C: Sharma is not new to our readers. Suggestions for improvement will be gratefully received by him as well as ourselves.
I The 741 OP amp IC is very inexpensive yet is comparable to the best in respect of versatility and superb performance.
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