Homemade headphones
Homemade headphones
(OP)
I'm trying to make a pair of big headphones for my metal detector. I've got a couple of small 49mm cone speakers Mylor 8 ohms 0.5W but they don't seem to want to work. I've also tried it on a sterio set without success. The cable I'm using is sterio but I've tried all combinations of wiring. Can anyone help a non electics guy
Cheers
Cheers





RE: Homemade headphones
Can you at least measure the speaker coil continuity with a test meter?
RE: Homemade headphones
Personally I like to use walkman style earbuds just in one ear only so I can also hear warnings from rattle snakes. And yes, I have encountered them while treasure hunting.
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"It's the questions that drive us"
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RE: Homemade headphones
When I put a battery across the terminals I get the usual clicks
RE: Homemade headphones
An ohm meter reading on your phones that work might well come up with a DC resistance (which will be significantly lower than impedance) of 200 - 1200 ohms. If that is the case, the amp driving the phones might well be designed for something in this range. Putting an 8 ohm load across the amp is almost like putting a short across it; maybe some current will flow, but zippo in the way of voltage, hence no wattage, and no audible signal.
RE: Homemade headphones
RE: Homemade headphones
htt
RE: Homemade headphones
Just a thought...
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"It's the questions that drive us"
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RE: Homemade headphones
Mind you it seems I've wasted £5 now with those speakers
RE: Homemade headphones
Not to mention all the coins that fall out of the kids pockets while playing about.
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"It's the questions that drive us"
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