[CW] Code Oscillator CPO was: Request for help

[Frank]

N5DWI wrote:

>
> One of my favorite XMTRs is a homebrew QRP job using a single 6AQ5-A.
> Abt 4-5W.  Cathode keyed oscillator.  Has a pronounced chirp.  
> Other ops say it really helps cut thru the QRM.  Even thru deep QSB.
> Also, I can cpy chirp sigs easier then pure tones.

When I first got my license we used to look for chirpy signals because 
they usually belonged to DX stations.

As to the code practice oscillator,  just tune the receiver to a carrier 
and key one side of the line going to the headphones.