LM741 Active high pass filter circuit

This is active high pass filter circuit for 327Hz frequency using LM741. It will use to build Harmonic at 3 of 130.81 frequency have the value at least. More than the frequency Fundamental 30 dB, for output be sawtooth wave form for use in sound of music way system Electronic design will use the circuit filters three rank frequency. By have 3 dB you slopes can use Op-amp IC number LM741 or number LF351it will meet the frequency well.
More High pass filter

By using IC 741Opto-Thermo Control Relay Switch

Circuit Opto-Thermo Control Relay Switch with IC 741
This be Electronic switch circuit is onely. Which work with the light and the temperature. I begs for to call that Opto-Thermo Control Relay Switch with IC 741. By have work various instructions very much. And have onely observations be I uses IC 741 then can insist that. Must easy and economize. For electric appliances supervision as a result command change , Relay there. The detail is all see in a picture sir.

by using IC LM741 Inverting Amplifier

Friends at study about the integrated circuit op-amp may nobody that strange Inverting Amplifier by IC LM741. Today we come to see this circuit again. Reserve will valuable in applying work other circuit. Get in the future by we fix R1 and R2. As a result will seek the value Vout get from a formula. Vout = -Vin(R2/R1) As a result request friends jubilantly with using integrated circuit LM741 please sir.
readmore: http://www.eleccircuit.com/inverting-amplifier-by-ic-lm741/

By using LM741 built 60Hz Notch Filter

using LM741 Simple Electronic Bell Generator

Today I begs for to advise Simple Electronic Bell Generator , with Linear IC Op-Amp the number is highly popular be number LM741. By when press S1 as a result , will have sound signal bell come out and lead this signal goes to amplify talk at one time with power Amplifier Circuit The general. For Circuit the this friends must use Dual Power supply Source 9 Volt. Detail sizes are other friends has seen in the circuit , which not difficult yes.