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Aug 10, 2011. 3:54 AMdemongood
says:
can you please elaborate the first paragraph.......and what is tab????
Jul 17, 2011. 2:32 AMcurious youth
says:
instead of e-tape. for a neater finish may i suggest hot glue and heat shrink tubing. that is my preference. but thats a nice mic :)
Sep 7, 2008. 11:22 AMREA
says:
not a good idea. i think the matierial will ruin the sound. of course if anyone knows if im wrong please correct me.
What kind of money is that???? Monopoly money $2 $5 how much is that stuff?
Mar 29, 2007. 8:25 AMHelixthecat (author)
says:
It's pounds sterling. If you want it americanised there are lots of free currecny converters online. When I checked £1=~$1.97. However, what costs £1 here could well cost more or less over there regardless of exchange rates.
Jan 17, 2007. 11:20 PMMyself
says:
Some of the earliest microphones were based on carbon granules, which you can also build yourself without having to buy the element anywhere. Look up how Bell did it. Also, try plugging a pair of headphones into the mic jack. You might find that one earpiece acts as a microphone, while the other does nothing.
Jan 18, 2007. 4:07 AMHelixthecat (author)
says:
I'll look into that. Thanks! I tried using my headphones once. It worked really well, but then I didn't have any headphones to listen with! A bit fiddly too.
Jan 18, 2007. 8:19 PMbf5man
says:
Look at 8:40 for a demonstration and an explanation about carbon granules microphones.
Jan 28, 2007. 1:15 AMxsmurf
says:
Wow this series is excellent! I've been watching for a few hours now hehehe. Lots of "easy" stuff, but it's fun and lots of history is put in which I find interesting even when I already know a subject pretty well. Many thanks :D
Feb 4, 2007. 6:47 PMbf5man
says:
Glad you like it, the same happened to me, i couldn't stop watching the shows!
Jan 22, 2007. 9:51 PMcsalzman
says:
Thanks for the great instructable! I've been playing around with contact mics for a few months now but this really blew my mind. I tried it with a bigger can and it definitely picks up sound much better.
Jan 18, 2007. 2:27 PMluketheobscure
says:
Reminds me of the egg-static mic and the copperphone. I've got an egg-static- essentially a mic mounted in one of those tea-balls made specifically for harmonica... the copperphone is sort of the same thing only mounted in a handmade copper pipe thingy.
Jan 18, 2007. 5:55 PMHelixthecat (author)
says:
The copperphone looks very flash and I love the sound samples. Looks like my tin can has some catching up to do!
Jan 17, 2007. 8:42 PMProteus
says:
That's very nice! would you happend to know it's frequency response :D ? I myself am doing some experimenting with these 30 cents of a dollar piezo-transducers (as close to Ultrasound as I possibly can)
Jan 18, 2007. 4:33 AMHelixthecat (author)
says:
I'm afraid I don't. I do know that the piezos resonant frequency is about 28kHz though, but I don't know how much that changes after being stuck to a can and everything. Good luck with your experimenting. Ultrasound always amazes me!
Jan 17, 2007. 9:07 PMMr.Devious
says:
...odd and different for sure. Thanks for the instructable, hope it works well.
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