[CW] Sine wave code practice oscillators

[sbjohnston at aol.com]

I just bought a nice 100-50-25 kHz calibrator on eBay from 

 https://www.ebay.com/sch/i.html?_ssn=electro-resales
and noticed they have several sine wave code practice oscillators and other interesting designs.
Manuals and schematics are available at 

https://www.electroresales.com/

73  Steve  WD8DAS












Steve WD8DAS   

sbjohnston at aol.com   
http://www.wd8das.net/   http://af4k-crystals.com/   
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