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Discrimination Mode "Sensitivity" and "Depth" in Single-Frequency VLF Metal Detectors
*Used with permission of Fisher Labs* Some metal detectors are “more sensitive” than others, and “how deep” a particular metal detector can detect a specific metal object depends on many variables. “Air test sensitivity” refers to the maximum repeatable detection…
Electrical Interference Essay by First Texas Lead Engineer Dave Johnson
Electrical Interference First Texas Products & Fisher Labs August 2009 Because of the high sensitivity of modern metal detectors coupled with the proliferation of sources of electromagnetic interference, you are likely to encounter electrical interference at times during the use…
New Gold Prospecting book by Fisher’s Dave Johnson
Fisher and Teknetics Chief Designer Dave Johnson has written an AWESOME book on gold prospecting with a VLF metal detector! Tons of great information for prospectors and potential prospectors…as well as folks who just want to “learn more” about metal…
Fisher F70 Review
“The Heat!” To put it bluntly, the Fisher F70 is THE HEAT! As a proud and happy owner of an F75, I caught myself thinking…”I bet the F70 will be a scaled down F75”. In some ways, I was right….
Detectorstuff.com Exclusive! Fisher F75 LTD User Manual!
Visit our Forums HERE to download the owners manual for the new F75 LTD!

