[CW] Good Sounding Sidetone or Code Practice Oscillator Kit
D.J.J. Ring, Jr.
n1ea at arrl.net
Wed Aug 14 09:21:55 EDT 2013
I have always found those 555 chip based code practice oscillators to be
very harsh on the ears.
I like something that sounds link an on-air signal.
73
David J. Ring, Jr., N1EA <http://www.qsl.net/n1ea/>
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