February 6, 2010 - SOLD OUT - the Shaped CPO II kit is no longer available
The Shaped CPO II kit is a Code Practice Oscillator with a shaped or ramped
near sine-waveform which makes listening to code more fun than the typical
square wave, 555 based code practice oscillator. It features:
![[shaped CPO II circuit board picture -
click for larger version]](cpo2s.jpg)
on-board key and stereo output 3.5 mm jacks
setup for easy installation in a candy tin
available as a board only kit
twin-t oscillator for near sine wave output
variable frequency via on-board trimmer pot
on-board LM386 amplifier included
manual and
schematic diagram
both in Adobe Acrobat (.pdf) format.
Also see a picture of a Shaped CPO II board installed in an Altoids tin with a pot and DC power jack.
Finally, a drill template (actually 9) for the Shaped CPO II board in a candy tin (a PCX image file - download and print out. Please double check for size accuracy before drilling!)
For larger quantity purchases, to combine with other items, for DX purchase price
or for any other questions, please send an email to me, Chuck Olson, WB9KZY at:
with your question or the items you want and we'll email you a Paypal invoice.
Page accesses: 
![[shaped CPO II circuit board picture -
click for larger version]](cpo2l.jpg)