🚀 go-pugleaf

peter@cara.demon.co.uk (Peter Ceresole) wrote:

>The Apple plaintalk mike for the PowerMac has a minijack with an extra
>connection in the middle to supply power to the microphone. If you look
>inside the Mac, you'll see the connection in the end of the socket. If
you
>use a standard unpowered microphone, like the mikes used with, say, 475s,
>the level is so low that it doesn't register. Unless the Sony you are
using
>has that power supply, or at least an output level to match that of the
>Apple kit, it won't work.

While it's true that the Apple PlainTalk mic has a built-in preamp and a 
line level output, it's not true that you can't use an unamplified mic
with 
a 7200.  On the CD that comes with the 7200 there's an extension (control
panel? - I forget the name) which changes the gain of the sound input amp
and allows you to use a 'normal' mic with the 7200's sound input
circuitry.

A number of off-the-shelf mics were tested with the 7200 and found to work
fine when the input amp gain was turned up with the included extension. As
I recall, there were several models from Radio Shack that all worked OK,
as
well as a number of mics from other vendors.

- Dale Adams
- Dale Adams