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Short lived classic Whites

straker

Active member
4900/SP3(Sierra Pro) with 3 position SAT toggle switch. Made around 1988 and didn't last very long. In addition to the 3 position SAT toggle it had a Tone control knob. These two features set it aside of an ordinary 4900/D. I just bought one and should get it soon. Has anyone ever used/owned one? Unfortunately...I'm not going to use what it's intended for...but I hope to find some processed GOLD! I wonder why Whites didn't continue making these? I'm thinking the frequency was better suited for copper and silver than gold. It's my only Whites now and a welcome addition to my 'Beep & Dig' units. Now to get it mounted with a straight rod just like the 4900/DL Max...
 
You might try this forum over at the White's web site.It is for questions on the older machines.
http://forums.whiteselectronics.com/forumdisplay.php?68-Other
 
Thanks,Waterbug! That is a very good forum and website for the older classic blue box Whites units. :clap:
 
Easy peasey, just go to Whites website>manuals>CM 4900/D. There's a note and instructions on the operation of the 4900 "Jimmy Sierra" model. I hope yours is in good working condition because it's a really good detector. I have had my 4900/D Pro Plus now since the late 1980s-early 1990s and I love it, my buddy bought his 4900/SP3 at the same time, we used them side by side while prospecting for gold up in northern New Mexico near Dulce close to the Colorado border, and they each did a really good job, the 4900/SP3 is a bit more specialized for prospecting than the other 4900s, but it's a good detector to use in the field for gen. purpose t-hunting. On any of the old Pro models, the 6000, the 5900, or the 4900, it's very important to follow the directions to the letter to find exact electrical center of those concentric search coils using both a piece of gold as well as a non-conductive mineral sample. The concentric coils on the older Whites machines are, IMHO, much better than any coplanar coil I've ever used (which ALWAYS have two focal points, what a drag that is!) Hip mount that 4900/SP3 and use it for life, you'll love it, just be prepared for a race car of a detector, what I mean is that the PRO series detectors are INFINATELY adjustable, and that's a big problem for most people who just want to turn on and hunt. Good luck with it, and welcome to the 4900 club.


wandering Mike Nesbitt
Whites 4900/D pro plus
flyboy32@juno.com
 
Jimmy designed this with three sat speeds for various ground minerals.
 
Well...sort of, depending on which SAT setting you're using the detector will track ground mineralization more quickly or more slowly than the 4900/D, when set to the mid position or "neutral" it will track in the stock 4900/D manner. We actually found this to be helpful in the dried stream beds of the San Juan river valley in northern New Mexico where patches of black sand with varying amounts of conductivity occur sporadically, I used the 4900/D alongside of the 4900/SP3 and so was able to see the difference between how the two detectors reacted to this heavy mineralization. My 4900/D required more tweaking of the GEB and the SENS. And although I haven't used every detector on the market I can say confidently that those 4900s did us proud in the search for gold, I've never used a finer "non-gold only", machine for finding gold. Mike
 
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