This website is the continuation of my old website at www.wb5tfv.com. That site is no longer maintained but I intend to keep it active for the foreseeable future. The original version of the CPO1 Code Practice Oscillator is described there.
Here is a photo of the assembled kit in its current configuration:
Based on feedback received from the initial run of kits, there are a couple of changes to the CPO1.
- The key jack (J2) has been rewired to accept either a stereo or mono 3.5mm plug.
- C6 has changed from a 100nF capacitor to a 10uF electrolytic.
The new schematic is shown below. A PDF version can be downloaded here: CPO1 Schematic
The manual for the kit can be downloaded here:
CPO1 Assembly and Operations Manual