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I own a modded Cibola with the stock 9X8, 5.75 DD&C. Is there somewhere to learn how to optimize the C? Would I benefit by upgrading any components to closer tolerance? Adding trimpots instead of resistors? I like the idea of a notch filter mod if it's feasible.
Would it be worth trying to RE the C, even with the mystery PROM chip? (have been practicing on a simple BFO circuit on another thread)
Why can I run the DD through my nail infested yard with hardly a peep, but both the concentrics go off like crazy even with the disc set high? Is this much difference normal? I'm thinking that I might need to tweak something because I seem to be finding tons of tabs & caps but few nickels unless I run about 20% disc... then, even MORE tabs.
Are there any detectors like the V&C that work as well (being fast and sensitive to gold & silver coins and jewelry) but don't love aluminum so much?
Hunting around the Seattle area, there isn't much left in the old coin department. I've only found a fraction of the silver coins that I expected to find, have done OK with silver jewelry but no gold. Disc issues, or the wrong detector??
I've put the hours in doing research and learning my detector, but I feel cheated when I see the annual tally by some of the guys online. 144 silver coins sounds WAY better than 27, and 4 gold rings in a summer sounds WAY better than 0.
Any tips that you can offer, or sources of info would be very much appreciated.
Would it be worth trying to RE the C, even with the mystery PROM chip? (have been practicing on a simple BFO circuit on another thread)
Why can I run the DD through my nail infested yard with hardly a peep, but both the concentrics go off like crazy even with the disc set high? Is this much difference normal? I'm thinking that I might need to tweak something because I seem to be finding tons of tabs & caps but few nickels unless I run about 20% disc... then, even MORE tabs.
Are there any detectors like the V&C that work as well (being fast and sensitive to gold & silver coins and jewelry) but don't love aluminum so much?
Hunting around the Seattle area, there isn't much left in the old coin department. I've only found a fraction of the silver coins that I expected to find, have done OK with silver jewelry but no gold. Disc issues, or the wrong detector??
I've put the hours in doing research and learning my detector, but I feel cheated when I see the annual tally by some of the guys online. 144 silver coins sounds WAY better than 27, and 4 gold rings in a summer sounds WAY better than 0.
Any tips that you can offer, or sources of info would be very much appreciated.