The attached is an old design from Altec, note the use of a germanium xstr and positive ground. Runs from 3VDC, relatively simple to build.

 

Please read the rules of the Completed Projects forum.

When posting a project please include the following information:

1. A clear title that describes the project appended by the word 'Project:', for example "Project: 555 Audio Oscillator".
2. A list of parts, equipment, software used.
3. Details of any theory, references or information that may be applicable.
4. Any schematics, source code, etc.
5. A short description of what to do.
6. In the interests of manageability and security, project files/code/schematics must be locally stored. Links may be used to provide supplementary information, however they must not provide the substance of the project.

Have you actually built this project? It is a requirement, and a picture is strongly encouraged as part of the first post.

A parts list, and a visible schematic are also needed. Basically this was spelled out in the requirements listed in the sticky.

Basically we have bumped up the quality of submissions. This is not to keep you from submitting projects, but increase the quality of the submissions.

Basically I will give this a week to be brought up to snuff. If this is not down the thread will be moved to the Projects Forum. If this happens you can still correct the entry and it will be moved back, there is no dead line for this.

Anything I can do to help this process please ask.