Flintstone said:
Can anyone tell me how much difference there is between these detectors? I can,t get Mr. Bill any more, I tryed Monte but didn,t here back. I have a Classics ID coming tomorrow that Mr Bill,s Mod done on it, dose that make it like any of the others? Thanks for any help. Flintstone
If you want to know how the Target ID 'Classic' models compare, we have to break them into two groups:
Classic ID's and the [/b]Classic IDX's[/b].
Classic ID and Classic 5I-D: The
Classic ID was the first Target ID based on the non-display versions. Like the Classic II and Classic III SL, the Classic ID operates at 6.59 kHz frequency. It is based on the two-knob Classic II design (Sensitivity and Discrimination), but also uses the Blue Max series of search coils.like the Classic III SL. Also, like the other Classic's, the Ground Balance and Threshold settings are factory-set using two internal trimmers.
At the minimum Discriminate setting, the Classic ID will accept some iron targets, such as most iron nails, etc., but it will reject some lower-conductive ferrous junk.
The
Classic 5-ID is based on the Classic ID, and has the same Discrimination range. However, the Classic ID had been discontinued and White's had replaced the Classic's with the Prizm series. The Prizm's didn't share the same search coils but operate at a higher 8.1 kHz. The Classic 4 and Classic 5-ID were two models made specifically for Kellyco, but they didn't share coils with the other Classic models. Instead, White's used the then discontinued Classic II and Classic ID versions and internally changed the 'front end' electronics to make them operate at 8.1 kHz and use the more limited array of Prizm series search coils. The Classic 4 was a modified Classic II (non-display), and the Classic 5-ID was the modified Classic ID.
Classic IDX and Classic IDX Pro: The
Classic IDX was simply a revision of the Classic III SL, just adding the viewable Target ID display/circuitry. The Classic III SL was a non-display Classic that had two additional controls. It had a variable control called
Frequency Shift, and a two-position toggle switch with settings labeled
Normal and
Black Sand. Neither of these name have anything to do with a Ground Balance setting, or dealing with mineralized ground, such as "black sand." Instead, the toggle selector is tied in with the Discrimination range.
If the toggle is in 'Normal,' then the Discrimination control has an adjustment similar-to the Classic II or Classic ID and, at the minimum setting, it will accept some nails and some iron, but not all ferrous items. When toggled to the 'Black Sand' setting, it shifts the lower end of the Discrimination range lower. There is no change in the upper-end of the adjustment range, simply an enhancement or expanded lower-end so that when in 'Black Sand' and with the Disc. control set to the minimum setting, there is NO rejection of metal targets. In essence, it is now in an "all metal accept" or 'zero' Discrimination setting and you can find all ferrous and non-ferrous targets.
Your 'Mr. Bill' modified Classic ID will have the two standard controls to adjust the Sensitivity level and to adjust the Discrimination level. In addition, Bill Crabtree did three other things:
1.. Added an external Threshold control so you can set the audio humm for a desired level for the speaker, or for the headphones you are using.
2.. Added an external 1-turn manual Ground Balance control so you can adjust the Classic ID for the mineralization level of the ground you are hunting, and make a tweak to the adjustment if you change to a more or less mineralized area, or if you change search coils.
3.. Usually enhances the upper-end of the Sensitivity control so that after the modification, the factory maximum setting would now be at about the Preset marker and any adjustment higher will add a little 'boost' the the Sensitivity function.
Personally, I think you will now have a very good detector for dealing with any ground challenge, and an excellent unit for handling closely spaced targets or a dense iron nail infested site.
Enjoy your modified Classic ID!
Monte
I can't remember, anyways... that it would be too involved/expensive to modify and I would be better off picking up a later model for modifications. Which is too bad as this detector is pretty darn hot for an entry level machine. I keep it for my sons to use. I have them carry a nickel to set the disc with, and off they go. My son's first time out he found a 1919 wheatie at 7", not too shabby. I had a classic ID when I first started detecting. A nice detector but if I remember correctly it doesn't have a depth readout, or modulation to help with depth perception. That's one feature I like about the MXT's and my Vx3, with coin sized targets they are spot on...
