uncle_ezra wrote on Oct 26th, 2006, 12:58am:Would a multimeter load the collector? What kind of input impedance does a multimeter have?
it should say what it is on the back... but usually they're 10Mohm... and if you can tolerate 30pF, then make sure you are using short (<0.5m) probe leads, then there shouldn't be a capacitance problem. If you're unsure you should use an oscilloscope, which has defined input R and C (typically 1Mohm//10pF on x1).