The B122 Volume control is included with each EMG Pickup and Pickup System. There are two versions, 25K Ohm for Active EMG’s and 500K Ohm for EMG-HZ Passive Pickups. The 25K Ohm control has a black PC Board, the 500K has a green PC Board, both are Audio Taper. The wiring configuration is the same for both 25K and 500K Controls. There are 6 header pins, (3 pairs of signal and ground) two of the pairs are for in/out, the third pair is for tone send or daisy chaining. Examples are shown in the included diagrams. The B122 features plug-in compatibility with all EMG Pickup Systems by using .100 (2.54mm) standard pin spacing. You can solder to the input and output of the control by using the 4 solder pads on the PC Board if connectors are not available, 2 of the solder pads are for input/output and the other 2 pads are for ground.
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