SkiWhiz
Elite Member
I recently purchased a White's Classic II as I got it for a good price and because I have always wanted to do the Mr. Bill's mod. I added the ground balance and threshold potentiometers a few weeks ago and finally received the resistors (51 ohm & 2.2 Meg. ohm) in the mail the other day and installed them this morning. I have read up on Mr. Bill's mod. many times and always wondered what he did to tweak the detector. What I discovered is that by adding the resistors (the 51 ohm & the 2.2 Meg. ohm) seems to be the tweak. All the White's Classics that I have ever owned were completely quiet with sensitivity at max. Now after the resistor change the detector can not have the sensitivity at max. without chirping. It acts like the Tesoro's when turned in the red. I did notice an increase in air tests inside my home but how much difference it will make in actual in ground use will have to wait until the ground thaws and the snow melts. My guess is that doing the mod. is going to be worth my time & effort.
P.S. I have extra pots. & resistors left if anyone wants the mod. done, I would be happy to do it.
P.S. I have extra pots. & resistors left if anyone wants the mod. done, I would be happy to do it.