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previous: moocow That's pretty good! I've run tests... -- 1146172777 view thread

Re: RFQ: Standard pickup load for single coils

4/27/2006 3:55 PM
moocowRe: RFQ: Standard pickup load for single coils
I thought I should give an example of the PSpice simulation results:  
 
http://home.comcast.net/~bcbarrera/files/pickup/Dummy_Coil.gif  
 
The green line shows the frequency response of the pickup when connected to a typical Stratocaster volume/tone circuit, guitar cable, and amplifier. The output is taken at the amplifier input. The green line shows the frequency response when a typical dummy coil is placed in series with the pickup. The resonant frequency shifts to the left and the resonance itself is damped. It isn't much of a shift but just barely enough to be audible.  
 
I have to say that the term 'frequency response' refers to the EQ-ing that occurs to whatever signal is generated within the pickup. The signal generation mechanism itself has its own frequency response and it is not included in the simulation. The flat area at low frequency should be interpreted to indicate a lack of EQ by the inductance, capacitance, etc. Whatever signal is generated in the pickup makes it over to the amp. The inductance, capacitance, etc. only affect the signal beginning at something over 1kHz.