hey... in this video.... ( http://www.youtube.com/watch?v=r1yPMDHiRuc ) ... this guy is building an input impedance controller...
im curious to know how will that interact with a transistorized preamp??
i mean the controller goes in between microphone and the preamp... and it lowers the input impedance from the preamp... so i assume that in a way is connected in parallel ...
but is it in parallel with another resistor or in parallel with the transistor directly...???
also i would like to know how could i calculate the change on the input impedance once the controller (1kohm) is full opened??
im curious to know how will that interact with a transistorized preamp??
i mean the controller goes in between microphone and the preamp... and it lowers the input impedance from the preamp... so i assume that in a way is connected in parallel ...
but is it in parallel with another resistor or in parallel with the transistor directly...???
also i would like to know how could i calculate the change on the input impedance once the controller (1kohm) is full opened??