Dummy Coil
1.) adds fixed resistance and inductance
2.) downward resonance shift
3.) dummy coil must be somewhat matched in resistance and inductance for hum cancelation
4.) Like a crossover network
5.) Shifts the Response curve
6.) compromize the frequency response
7.) resonant frequency shift
8.) the magnets removed
9.) Using a dummy coil the DC resistance will change along with the tone and frequency response of the existing pickup
10.) You could use two dummies coils in parallel or in series
1.) adds fixed resistance and inductance
2.) downward resonance shift
3.) dummy coil must be somewhat matched in resistance and inductance for hum cancelation
4.) Like a crossover network
5.) Shifts the Response curve
6.) compromize the frequency response
7.) resonant frequency shift
8.) the magnets removed
9.) Using a dummy coil the DC resistance will change along with the tone and frequency response of the existing pickup
10.) You could use two dummies coils in parallel or in series
