This device is a simple audio frequency generator. It can be used for general purpose measurements in the electronics lab.
I designed for the following features:
I chose the classical XR2206 analog monolithic function generator. I did not use the rectangular wave capability, because I got another device covering that.
More details about functionality and design can found in the ZIP-Archive.
Copyright (C) 2020, by Dr. Thomas Redelberger, redethogmx.de. All rights reserved.
I do not intend to offer/sell this!
I publish here the electrical schematics and the mechanical design, such that you could build your own device. I put all the files of this project under the GPL2 open-source license. See the file ./COPYING.TXT. This is hence open hardware.
Actual construction of the circuit requires a significant knowledge of electronic circuit design and construction beyond what is presented here. The author, Dr. Thomas Redelberger, does not warrant operability, reliability, suitability or safety of any of the circuits. Anyone who constructs and/or uses these circuits accepts all responsibility for their operation and safety.