The Speleonics Michiephone Schematic Diagram is hereby placed into the public domain.
The Speleonics Printed Circuit Board Design is hereby released under the following license conditions:
The License:Finally there is NO WARRANTY on any of these schematics or board designs.
- You may use Speleonics Michiephone Printed Circuit Board Design verbatim to produce Michiephones for your own private use, for the use of your caving club or for a cave rescue group.
- You may publish this circuit board design in your club journal, on your web site or your club's web site for the purpose of allowing others to make Michiephones based on this circuit board design however this License must also accompany that publication.
- You can't take the Speleonics Michiephone Printed Circuit Board Design and sell Michiephones based on this circuit board design unless you contact me and arrange a license to use the board design.
If you want to sell Michiephones based on the Speleonics design you may start from the Speleonics Michiephone Schematic Diagram (which is in the public domain) and design your own printed circuit board. This is not an unreasonable request given that you can use the Schematic diagram freely as it is in the public domain.
The modifications to the basic design that Speleonics has made is detailed in the Technical Information section.
Also grab the Bill of Materials for the parts list: mph_bom.pdf (45 kB)
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|Michiephone Handset Circuit Board Schematic
|Michiephone Handset Printed Circuit Board Design