Hi,
I was wondering if anyone has tried to characterize their guitar's pickup impedance out of curiosity.
Through a patch cord (I know more cable resistance and capacitance...) and a jack I fed in signals in the range of 50Hz up to 50kHz in series with the pickup and a resistor.
I then measured the voltage across the resistor to get a current value and then used that to compute the magnitude of pickup impedance.
I ended up getting the characteristic shape of the response. Resistive -> increasing impedance due to inductance -> peak -> parallel capacitance driving impedance to zero with increasing frequency.
I am just wondering if there is a more efficient or effective way of finding this measurement.
I was wondering if anyone has tried to characterize their guitar's pickup impedance out of curiosity.
Through a patch cord (I know more cable resistance and capacitance...) and a jack I fed in signals in the range of 50Hz up to 50kHz in series with the pickup and a resistor.
I then measured the voltage across the resistor to get a current value and then used that to compute the magnitude of pickup impedance.
I ended up getting the characteristic shape of the response. Resistive -> increasing impedance due to inductance -> peak -> parallel capacitance driving impedance to zero with increasing frequency.
I am just wondering if there is a more efficient or effective way of finding this measurement.