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The 4900 Di Pro comes with a double stacked pot. this is a 1 turn pot, with a second shaft that gives you a really fine selection for ground balance. It is whites part number 802-7141 15.95 when I ordered it it did not come with the knobs. Replacing the GEB control on a 5900/6000 or other whites with a 5K geb pot, will upgrade the detector to allow for much finer ground balance. The part number under the black plastic cover, is 125-0502-531 5K 0211 I don't know who makes these, but it looks like a 2011 manufacture date. I'm betting anywhere you go, they are going to be expensive.
I have to contact Whites for the knobs I guess, I expected it to come with the knobs.
Mary Hudson at whites is a jewel. Called her and questioned her about the knobs, and she sent them right out, and said "be sure and tell me everything you need."
I have to contact Whites for the knobs I guess, I expected it to come with the knobs.
Mary Hudson at whites is a jewel. Called her and questioned her about the knobs, and she sent them right out, and said "be sure and tell me everything you need."