| Electronics > Projects, Designs, and Technical Stuff |
| why is my guitar pickup not picking up the mids here? |
| (1/3) > >> |
| ELS122:
so I used a coil and a sweep generator to test my pickup's frequency response because it sounded like "life-less" when I pluged it in an amp. and I saw this weird graph, I was imagining a drop off at the end like all pickups have cause of the capacitance, but what's weird is that there was a major low-spot at the middle, at around 140hz, I set the sweep generator to speed from 1hz to 16k, maybe it is caused by my phone because I used a online sweep generator, or maybe the coil itself, also the high spot at around 50hz is probably the mains, I will try to input a higher gain signal for a higher signal to noise ratio and post the result here. |
| ELS122:
Here’s the coil, I know that it’s a crude one but it was the best thing I had lying around, also the fact that there isn’t many windings might even be good cause more windings also cause more capacitance that might interfere whit the result. |
| ELS122:
I repeated it whit a higher signal input and still, no lows, and some mids are not being picked up |
| Electro Detective:
If it's a humbucking dual coil pickup, and has about 5 or 6 colored leads, it may be miswired to the switch, pots and caps, or have an internal wire short or broken wire in the pickup itself. Also if the pickup has been dismantled in the past, the magnet/s may be flipped the wrong way upon re-assembly. Either of the above cancels the lower to mid frequencies. Worst case, one of the coils may be dead or half gone, or faulty from manufacture and never tested before shipping. Good luck :-+ |
| ELS122:
so I found this graph that shows the response of the pickup I tested on the blue line and a more quality pickup on the red line. also, I have used one coil from the neck pickup and one from the bridge after I heard rumors about that increasing mid response, and probably the reason I am having these problems is that I have like 50 switches that connect the pickup in different ways, I but every other combination sounds either super dark or really "twangy" and like Idk dumb sounding. but if they would be out of phase, which would be a good explanation for this, I would have near 0 output, I tried that already, it's probably now in parallel the pickup. also, it's the bridge pickup so that might lower some low response. I will disconnect the pickups from the circuit, test in what way it was connected, and test the response while connecting it like usual, either in parallel or series, in phase. |
| Navigation |
| Message Index |
| Next page |