After some of recent goings-on here on the reflector (aka the craic, as the OTs might have said), I happened to remember Elenco used to make (among other a quadjillion other things) a signal tracer/injector. It was neat because it was in a logic probe case instead of a separate box. However, it's getting hard to find logic probe-style cases these days. I found one online but the manufacturer sold the last one just before I went to place an order.
Still, this might be a good tuna can idea. The Elenco used a headphone jack. A speaker would fit into a tuna can or Altoids tin (small piezo type, maybe).? And maybe a visual indication would be cool...
What's nice is something like this could be used in the field or at buildathons, etc., without the need for lugging around? a scope. With a little ingenuity, it might even be able to sniff RF...??
-HRS
H. Russell Smith, N0QLT???
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