Circuit description. ICL is a kind of monolithic function signal generator with excellent performance. It can generate sine wave, triangle wave, square wave. 23 Feb A simple function generator circuit with diagram and schematics using ICL, which is a pulse generator IC which generates waveforms of. DIY Function Generator (ICL) 0 Hz – Khz: Function Generators are very useful tool in electronics bench,but it can be quite expensive, but we have many.

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Here, i fixed the square wave with a comparator so that the slope is pretty steep, steep as applied comparator can give. Though it does use linear control voltage, it’s doubtful it would track a linear voltage produced by, say, a keyboard of a Korg MS, which produces a linear control voltage, but it would be great for sweeping and modulation effects.

Such is especially the case with the often maligned ICL If you’d like to etch a PCB for your audio generator, the PCB layout and parts placement document are available for download below. This IC produced not only sine wave and square wave but also triangle wave. You’ll see it is fed the proper nutrients as well.

Audio Function Generator – Electronics Project

The output waveforms can be both amplitude and frequency modulated. Voltage transformer should have a 2x14V minimum to allow the proper operation of and stabilizers. It is used as a noninverting amplifier with a gain of I urge you to go there and browse, and even sign up hey, it’s free! The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored. Imperfections In this article i described how to make a simple front panel its not translated, sorryand beside regular files such as PCB files, i added a geneerator design of the front panel in the PDF format, suitable for housing Z1A, in the attachment.


Found it and found this.

The 8038 Audio Generator Project

The audio generator operates in the the range of exactly 20 Hz to 20 kHz. And that certain someone was Coach Henry.

Go back and forth between these to pots to arrive at a solid 20 Hz to 20 KHz range. Offset, amplitude, and frequency scales are pretty accurate.

ICL8038 Function Generator

Rising edge depends only on the pull-up resistor and its growing very slowly. I got rid of some of the elements, I added my own solutions.

For smaller-amplitude output ac signals, it may be necessary to reduce the output offset voltage to zero innitially. R10 sets the maximum frequency and R23 sets the minimum frequency. This is the best function generator circuit for a beginner to start with and is of course a must on the work bench of an electronics hobbyist.

We have more Measurement Circuits that you may like to visit;Take a look below: The frequency control set consists of a coarse and fine tune arrangement – the coarse control obviously will move the frequency in greater increments, and the fine control allows one to set the frequency exactly at the desired point.


The circuit here is designed to produce waveforms from 20Hz to 20 kHz. As always, there is the Ilc8038 Henry Designs forum at electro-music. It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc.

That allows you to put it on your bench top and use it to test your audio circuitry. It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors.

ICL Function Generator

While monitoring the output on a frequency counter, adjust trimmer R10 Max to give 20 kHz. It also analyzes transistor’s characteristics such as voltage and gain. Lets us see how the can be used as an audio function generator.

generatod As it turned out its only making them worse, and add a characteristic spout on the top of the upper half of the sine. All it needed was a good coach, someone habitual enough to pluck it off the bench and force it to run wind sprints, stair laps and line drills. Since the input voltage for the comparator has a greater amplitude than its supply voltage, I decided to fed it just trough the current limiting resistor.