If you are looking for a cheap, high quality signal generator for hobby electronics, ICStation's ICL8038 Signal Generator can be an excellent tool which can easily meet all of your requirements. This product uses the Intersil IC8038 IC to generate sine, triangle and square waveforms from a frequency of 10 Hz to 450 kHz, making this product perfect for small uses around the lab. With many on-board potentiometers and jumpers which enables you to change certain aspects of a specific waveform, the ICL8038 signal generator can easily provide you with your desired waveform for any project in no time. In this setup, you will learn how to configure this module so that you will eventually be familiar with what every jumper or potentiometer does and how to briefly use this generator overall to suit your needs. The pictures below show you a brief hardware tour of this module and the generator in use with an oscilloscope connected to its output:
SETTING IT UP
1. Firstly, to power up the ICL8038 Signal Generator, you will need constant DC power from 12 to 15 volts, which can be inputted into the two terminal blocks located on the module marked "VCC"(+) and "GND"(-).
2. After powering up the generator, you can connect wires from the output to your oscilloscope or application circuit with either the pure signal output or the DC bias output but make sure you connect your ground lead first.
3. Now, use the jumper as indicated by the picture above to select which type of signal wave you would like: sine, triangle or square wave.
4. After you've done that, use the jumper as indicated by the picture above to select which frequency range your signal would like to be within, all depending on your application: 10Hz - 450Hz, 90Hz - 1.5kHz, 950Hz - 15kHz, 6kHz - 120kHz or 20kHz - 450kHz.