Electrical Engineering - Beginner Question

Author

Beginner Question - FM Transmitter

lochok

2006-04-17, 2:21 am

Good Afternoon Ladies and Gents

My apology if the answer to this is blatently obvious. I'm fairly new to
both electronics and this newsgroup.

I'm building a wireless-guitar-lead setup. I've found an FM Transmitter
Circuit that sounds appropriate
(http://www.free-electronic-circuits...ransmitter.html).
My Question: How do I change it from using a Electret Mic. to a Guitar
Jack? I havn't used the mics before, and am unsure if I can just hook the
guitar jack up instead of the microphone, or if additional (or removing)
other circuitry is needed

Thankyou in advance

Lochok

Derek ^

2006-04-17, 2:21 pm

On Mon, 17 Apr 2006 15:03:41 +1000, lochok <lochok@optusnet.com.au>
wrote:

>Good Afternoon Ladies and Gents
>
>
>My apology if the answer to this is blatently obvious. I'm fairly new to
>both electronics and this newsgroup.
>
>I'm building a wireless-guitar-lead setup. I've found an FM Transmitter
>Circuit that sounds appropriate
>(http://www.free-electronic-circuits...ransmitter.html).
>My Question: How do I change it from using a Electret Mic. to a Guitar
>Jack? I havn't used the mics before, and am unsure if I can just hook the
>guitar jack up instead of the microphone, or if additional (or removing)
>other circuitry is needed
>
>Thankyou in advance
>

Hey, this is like re-living the early '60s all over again !

Does the guitar have a pick up coil or a microphone?

Anyway, just try it.

You will have either

Too much guitar input : (Overloading/Distortion). Try removing C3 &/or
increasing R6

About right : (Deep Joy).

Too low guitar input : (Low audio). Try removing R6 &/or Add another
stage of amplification, replicate the Q1 stage with/without it's C(3)

You just made a happy man very old.

DG

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