Not hard at all. You'll need to move one cap and substitute a new one for the other. Refer to the marked up PCB diagram below and do this:
- Remove the 47n (473) cap.
- Move the 8.2n (822) cap to where the 47n cap was.
- Obtain and install a 2.7n (272) cap where the 8.2n cap was. (BYOC sells them HERE)
Done! The "hump" position of the switch will now give the flat EQ response, and the "flat" switch position will split the difference between flat & scooped. I used the
Duncan Tone Stack Calculator for the Big Muff tone circuit to size the 2.7n cap, so it should be extremely close to the halfway point.
Attachment:
LB_cap_change.jpg [ 90.15 KiB | Viewed 2878 times ]
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