I am building tube-amplifiers for audio use. I want an really exact oscilloscope, because the oscilloscopes that I have used in the past (8 bit, 60- 200 MHz) have not been able to give me the precision I need, and has basically just been a way to visualaize the readings on my bench multimeter.
I looked at the ADC-216, and it lookes like a promesing product, but it can only accept +-20V input. If I use a 100x probe does that mean that I can measure +-2000V? I need to be able to measure voltage up to about 1000V, and I have been able to do this whit an Tektronix oscilloscope and an 100x probe, but whit really bad accruacy. Would the ADC-216 solve my problem?
I am also a bit confused about the relation between; sample rate, buffer size and bandwidth.
If I want to record, say a start-up scenario of about 30 seconds, what will the accuracy be on the recorded material? Why can't I record directly to my harddrive and get all the data points I need?
I have seen that you have a function generator that you can link whit one of your oscilloscopes, to generate frequency response curves. Will that work whit the ADC-216 as well? Why do I need to link the function generator whit the oscilloscope? Can't I just measure the input whit probe A, and the output whit probe B, and let the software compute the frequacny responce from the measuments?