Can someone please recommend a circuit I could build to act as a high
impedance
probe or buffer to enable connection to the 50 Ohm input of my frequency
counter
and for viewing the waveforms on a 300MHz scope.


Thanks.

On Thu, 27 Jan 2005 07:49:06 GMT "David" wrote:

Can someone please recommend a circuit I could build to act as a high
impedance
probe or buffer to enable connection to the 50 Ohm input of my frequency
counter
and for viewing the waveforms on a 300MHz scope.

Some of the older Tek 400 series scopes had an amplified output from
one vertical input channel. This could be left connected to a
frequency counter if you wanted.

What kind of scope do you have? Have you checked to see if it has such
an output?

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Jim Adney
Madison, WI 53711 USA
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