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Steve Anderson wrote:I also notice that I don't see a proper 'scope probe, just a coax cable with a couple of 'croc' clips on the end. Op-amps and most semiconductor circuits don't like the capacitance of the cable and the input capacitance of the scope. This can add up to over 200pF, many circuits will go unstable with this hanging on their output unless specifically designed for it.
Klaas Robers wrote:Andrew, dig again in the junk that came with the oscilloscope.
You will find (a) short lead(s), say 10 cm, with at one end a small crocodile clip, on the other end some other type of clip. This clip can be clipped to the back-end of your probe and gives you a better ground than the wire that follows a different path to your oscilloscope. This is the professional way to use an oscilloscope.
We assumed that you knew this all. Stupid us....
Steve Anderson wrote:Andrew,
On page seven of this thread Gary posted some words about 'scope probes along with a picture. I guess both Klaas and I assumed you were using one.
Perhaps because it was posted on April 1st you thought it was an 'April fools' joke? (Just joking).
Steve A.
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