Gandledorf
New Member
Say I have some signal of interest on voltage, and I am processing it using several stages. For instance, I have a gain stage, bandpass stage, ADC stage, and then a demodulation stage.
If I wanted to include several options for one of the stages, say in one trial I want to bandpass with one filter, and in another trial, with a different filter, or perhaps I want the option to remove a stage, possibly strip away the gain stage to see if I can get good results with the built in gain of my filter, can I do this in the following manner?
**broken link removed**
Would the 2N3904 be an appropriate transistor as it has a fairly low current gain? How would I need to account for this gain in my circuit?
If I wanted to include several options for one of the stages, say in one trial I want to bandpass with one filter, and in another trial, with a different filter, or perhaps I want the option to remove a stage, possibly strip away the gain stage to see if I can get good results with the built in gain of my filter, can I do this in the following manner?
**broken link removed**
Would the 2N3904 be an appropriate transistor as it has a fairly low current gain? How would I need to account for this gain in my circuit?