Friday, April 12, 2013

Do-It-Yourself Metal Detectors (Part 4)

 (Digital volt meter/multi-meter.)

In this post, Arizona gold miner and detector enthusiast G.T. Blocker provides additional information on what's needed to make your own home-made or do-it-yourself (DIY) metal detector.

So What Do All Those Meter "Thingies" Do and How Do I Use Them?

"While an 'uber' lab might be nice for those who can afford one (and for those with the skills to seriously take advantage of such things), there are viable options to the 'fat wallet' approach."

Gold Prospecting Books
Gold Pans
Gold Concentrators
"For example, signal generators and frequency meters are both available as off-the-shelf kits. Either of these items is a great beginning project to learn necessary skills that will prove useful later on. If you decide to build your own custom search coils later on, you'll need both of these tools anyway."

"By the way, a lab doesn't have to be fancy or complicated...which leads me to my next subject."

Basic Volt/Ohm Meters

"If you do an online search for digital volt meter (DVM) or digital multi-meter (DMM) you'll notice that most modern versions measure volts, amps, ohms, and even have nifty little functions like transistor and/or diode checking. DVMs and DMMs are the most basic tools necessary for electronics work (aside from a soldering iron) and one or the other is an absolute necessity."

(Signal generator.)

"This electronics tool helps you find answers to many of those 'what the heck's going on' questions that are part and parcel of DIY detector or coil design and construction. If you're interested in DIY metal detectors, I recommend you look the DVM and DMM up online and get a drift on what they're all about. (That's your homework.)"

Soldering Irons...So Many Choices

"Soldering irons are pretty basic so you don't need anything fancy. A 25-Watt soldering iron will work just fine and will run you around $10.00-$25.00. Just make sure the iron you purchase has a fine tip."

"You'll want to keep your soldering iron clean by periodically wiping it on a sponge or paper towel that has been dampened. Be sure to use thin rosin core solder (NOT acid core). Then, just go for it!"

There's more to come from G.T. so stay tuned.

In the meantime, don't let all the "dream merchants" out there baffle you with their Grade-A bullshit about all things gold mining.

If you liked this post, you may want to read: "Do-It-Yourself Metal Detectors (Part 3)"

(c)  Jim Rocha (J.R.)  2013

Questions? E-mail me at

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