F-75 And T2 - New Lightweight 15” Coil
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By nickeldNdimed
I have an F22 with the stock 9” elliptical concentric coil that I like taking out every now and then. Mainly playgrounds and parks. I probably get most things within 6”. I’ve dug some good deeper signals occasionally but most good signals are within that 6” range which is adequate. I do use the iron audio occasionally, tot lots with mulch I did everything above the weed barrier.
I’ve been wondering about the Fisher alternative coils like the 4” concentric for some really trashy areas around shelter. I’ve also seen come across some posts where folks refer to a 5” DD coil but unclear which one. The F5 and F75 have that option but it is not on the charts as compatible with the F22. I’ve also seen aftermarket 5” DDs and other options. I figure depth loss should be minimal with better separation.
Looking for insight from others that have used alternative coils on these detectors.
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By dogodog
Wow I can't believe I got out yesterday to dig. It seems like work and the stress of things in 2020 took a toll on my detecting experiences for quite a while. I wanted a new coil for the MK and saw a post Kac made about the Nel Superfly, So I said what the heck I'll give it a try. This coil is 6 grams lighter than my 9 inch. I must say this coil is amazing!!! great depth and way better separation. So I went to give it a spin on a site I hunt that has some modern and 18th century history to it. (ball fields and farm fields). I swung for about 5 hours in the 35 degree weather, and found a bunch of coins,(1941 penny, 46 nickle) shot shells, suspender clip, fishing reel, and a fragmented old bell. I wish the bell was whole, because it was about 2'' in dia. The reel perplexes me because of the lack of water in the middle of a 20 acre field. Overall I had a really nice trip out, I was starting to forget how detecting can clear your mind.
PS Joe D can you please send some of the Florida warmth up here to PA.
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By hochmi
Hi i have one question . Its possible change coil conector ? ( fits AKA coil to Garrett? )
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By James Ryan
I've always wrapped the coil wire around the shaft a few inches up from the coil. But then I saw in a some people mentioning they run the wire straight up the lower shaft then start coiling the wire above that. Someone mentioned the reason he does this is because of the magnetic field and possible interference wrapping it shortly above the coil. I have only been detecting about 7 years and always trying to learn more. Any advise/suggestions ect. on this would be great and thanks in advance.
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By Al F
I’ve been dithering on the 15 inch coil for my Noxy 600.... I mostly do beaches here in So Calif..... I’ve been doing ok with the 11 inch that came with, but am not sure if the 15 in her would be an advantage..... what are your thoughts? ? ?
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By Steve Herschbach
The Fisher CZ-21 is one of the best VLF underwater detectors on the market and can double as a good dry land detector. Waterproof to 250 feet, it is the real deal when it comes to diving and built like a tank. It is the only serious competition to the Minelab Excalibur with the main difference between the two the basic physical design and control layout. Performance is too close to call. I personally prefer the CZ-21 due to the easy hip mount capability, more distinct tone scheme, and true all metal mode. You can get it in 8" or 10.5" coil sizes but the coil is hardwired so be sure and get what you want. Big coils are better on the beach but if you are also thinking parks and such on dry land the 8" is the better option.
There is a huge price increase coming that will put what you see it currently for sale at as not too far over the new dealer cost! I literally almost just bought one myself just now but veered away before hitting the buy button because - well, you know it - I have too many detectors already anyway. Still, it is almost an investment at this price as used prices are going to take a big jump also.
Anyway, just a head's up for forum members in case anyone was on the fence about the CZ-21.
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