[email protected] said: > I'm going to be taking some oscilloscopes to a hamfest this summer, and I > am going to have a truck full of stuff anyway, and would like to avoid > hauling my signal generator to provide a demonstration of the scopes. Does > anybody have a 50MHZ+ OCXO or other oscillator with a coax(sma/bnc) that > they would like to part with? Something that doesn't meet time nuts > standards is perfectly fine, just want something that is faster than the > built in calibrator on the scopes.
Do you have any of the standard 14 pin dip osc packages in your junk collection? You can probably run one off a pair of AA batteries. The square wave output would be good for showing what a scope can do. Most of the not high frequency osc packages have slow rise times. You might want to run it through a buffer. A non terminated connection on a few feet of coax will give you nice reflection spikes to look at. The best scope demo toy I ever saw was a Tek giveaway. It was a burst of high frequency stuff with a low rep rate. There are all sorts of opportunities for aliasing with digital scopes. The old skier avalanche beepers work pretty well too. Their burst is something like 455 kHz modulated at 2 kHz. (I think they changed the frequency 10 years ago.) -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
