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phone into a microphone

i was thinking about trying to turn an old phone into a microphone for a music performance or something? correct me if im wrong and i probably am but, a small crap microphone is a telephone would work would it? i was thinking if i left the whole phone in tact but made the cord come from the phone base into a microphone jack, how would i connect a microphone jack that has 5 legs to a 2 wire phone microphone? it couldnt be done could it? It would work if i just bought a crappy microphone and moved and fitted it into a telephone so it has all the circuit or what ever else is in one already in it I apologize if most of that doesn't make sence

10 comments
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Jun 8, 2010. 1:13 AMthunderbirdESQ says:
or if you arent like super passionate about DIY ethics and you have 20 bucks you can buy a XLR to RJ11 Phone Jack In Line Adapter
Oct 13, 2008. 11:12 PMLinuxH4x0r says:
You'd probably want to get a decent mic in there if its for a performace. Try using the small clip on unes used with wireless transmitters
Oct 13, 2008. 11:27 PMLinuxH4x0r says:
Yep, just use the shell as a case for the mic
Oct 14, 2008. 7:36 AMgmjhowe says:
I was about to say that, you could also wire up a cable that uses the standard phone cable...
Oct 14, 2008. 8:00 PMalex-sharetskiy says:
Buy a pair of headphones and do this
Oct 14, 2008. 3:09 PMrandofo says:
That was one of my first projects. I got ya covered:

http://www.instructables.com/id/Telephone-Handset-Microphone/
Oct 14, 2008. 5:48 AMgmoon says:
Like an old rotary dial telephone handset?

The old phones used carbon microphone, and lots of musicians have utilized their limited fidelity for special F/X. In fact, most audio editing software has a "telephone plug-in," to degrade audio for the effect.

Just disassemble the handset, remove the headphone element, and connect a new cable to the mic element (or splice the end of the existing cable.)

The carbon mic won't be balanced. You'll need an unbalanced input for the board, or an unbalanced-to-balanced converter if you only have XLR inputs. You could build the converter (basically a mic transformer) into the handset.

You can do the same with any cheap mic element (phone mic, computer mic, etc.), not just a carbon mic...

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