Component value for this simple circuit

[Zak]

I have a microphone which needs to be powered by a socket with "Plug-
In Power".

My tape recorder does not provide "Plug-In Power" so I want to build
a simple inline power unit to drive the microphone through its usual
plug.

In the following PDF (bottom of page 1) is a circuit to do this.
http://www.microphone-data.com/pdfs/Powering%20mics.pdf

The circuit is dead simple but I am not too hot on electronics so I
would like to ask you what value of capacitor should I use?

BTW do you think 2.5v is high enough?

Thanks.

================

Other circuit
http://en.wikipedia.org/wiki/TRS_connector#Recording_equipment

 

[Palindr☝me]

Zak wrote:

I have a microphone which needs to be powered by a socket with "Plug-
In Power".

My tape recorder does not provide "Plug-In Power" so I want to build
a simple inline power unit to drive the microphone through its usual
plug.

In the following PDF (bottom of page 1) is a circuit to do this.
http://www.microphone-data.com/pdfs/Powering%20mics.pdf

The circuit is dead simple but I am not too hot on electronics so I
would like to ask you what value of capacitor should I use?

BTW do you think 2.5v is high enough?

Thanks.

================

Other circuit
http://en.wikipedia.org/wiki/TRS_connector#Recording_equipment

The voltage is fine. The capacitor values depends on the thing you are
connecting it to and the bandwidth that the microphone covers. They may
easily not be needed at all (eg may already be built into the tape
recorder), but will do no harm to include them.

A ballpark figure is to try, say, a 10uF, 12v electrolytic. These have a
+ and - terminal, so get them the right way round, as shown on the
diagram.. But you would probably find that anything from 0.5 to 100
would work reasonably well..

--
Sue

 

On Tue, 11 Apr 2006 01:12:56 +0100, Palindr?me <me9@privacy.net>
wrote:

A ballpark figure is to try, say, a 10uF, 12v electrolytic. These have a
+ and - terminal, so get them the right way round, as shown on the
diagram.. But you would probably find that anything from 0.5 to 100
would work reasonably well..

Sue, I like your style.