View single post by Jeff
 Posted: Mar 6th, 2008 06:23 PM
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Jeff

 

Joined: Nov 7th, 2007
Location: Alabama USA
Posts: 127
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 Slider2732 wrote: Using an oscilloscope is possible, I brought my EICO TR-410 in from the sub zero garage recently.

Thanks Jeff for being Rosetta Stone lol

Rosetta Stone?!!  Well...thanks for that...but hardly!

Really, Mark, the TR-410 will work just fine.  Remember to allow the TR-410 at least 30 minutes to stabilize before use.  Just how cold WAS that garage?

If memory serves, the TR-410 uses banana type inputs.  Please correct me if I'm wrong.  But if that's the case; and you are working beyond 20kHz, as we suspect; you may consider building a coaxial cable (RG8X or less in capacitance) with banana type connectors soldered very closely at the end of the cable that inputs to the scope.  This will help reject any stray RF; and ground (earth) hum. 

Also, I must recommend a spectrum analyzer (software based, to conserve finances) connected in parallel to the scope.  That would offer a far better scenario for analysis.
In this way, you will visually see amplitude and wave characteristics on the scope; you would also see, from the spectrum analyzer, the bandwidth of activity!

Now, "turn off your mind, relax, and float downstream".

Cheers!

Jeff