My introduction to Morse code was in 1955. Our Boy Scout Troop used an Instrograph to teach the code for a merit badge. Its been 55 years and I still consider the note from that machine to be the gold standard for code practice oscillators. I don't know if it was a pure sine wave, but it was music to my ears. I know that real music is definitely not a sine wave. I suspect that spark was about as far as its possible to get from a pure sine wave!
73, Rick Dettinger K7MW > > Also, all the concern over a 'sine wave' tone is a modern > affectation that still gets a chuckle out of me and many other OTs. > Professional CW operators and Hams alike seldom cared if the tone > they heard was a sine wave, a square wave or even some odd-ball > sawtooth or triangular waveform. For many, many years my personal > favorite sidetone monitor was an RF-activated sawtooth wave > generator. I operated some gear in professional/military > installations which the "sidetone" heard while sending was no tone > at all, just a confused bunch of bloops, squeals and blasts of hum > from a monitor receiver. No one thought anything of it. > > The bottom line is expectations change. Back then we thought nothing > of taking five or ten minutes to tune up on a different band. Many > Hams built their stations to operate on only one band. > > And some of us are still out there, Hi! > > Ron AC7AC > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
