Magic wrote:
> HI all,
>
> I've built a pair of DIY mics for doing a bit of recording with my MD. I
> used a pair of very cheap Electret Condenser Mic Capsules that were so tin
> that I needed a magnifying glass to see when I was soldering the wires on.
> I'm powering them from a very basic battery box which uses a dead simple 1
> resistor, 1 electrolytic capacitor configuration with a power supply (Taken
> from the Maplin catalogue and the same as I've seen in the DATHeads FAQ).
>
> Ok, here's my questions:
>
> I know that by increasing the value of the capacitor I can reduce the bass,
> but is there a way to boost the treble slightly?
If you could point us towards the schematic you are using, it would help.
>
>
> The mic spec. states a power supply range of between 1V and 10V, with 4.5V
> being the "optimum supply". What difference will runnig the mics on this
> voltage make, as I am currently using a 9V cell. ?
Do they show a frequency responce curve?
> Final Q, just in case somebody knows... Is there a way to shrink heat shrink
> tubing without a hot-air gun? I want to make a stick-mic for my MD and would
> like to encase the capsule and leads, but don't have a hot-air gun
> (hairdryer wont be hot enough I'm sure!).
A hair dryer will probably work. Alternately, you can shrink it with the
soldering iron. Just hold it over the heated ironand rotate it like it is on a
BBQ rotisary. Be careful and don't get it too hot, or touch the iron with it
or your fingers. <G>
--
Jim Coon
mailto:[EMAIL PROTECTED]
If Gibson made cars, would they sound so sweet?
My first web page
http://www.tir.com/~liteways
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