I have a 2202 O-scope and am looking for a way to check frequency responses on tube amps. I tried the sound card but the sound card has an unacceptable frequency response to send to the amp in order to measure the input and output of the amp. I see now that the 2200 series offered a programmable output function generator combined with the O-scope.
I realy do not want to invest much money into this. Any one have any ideas?