First off, make the powering circuit for the "Tape Op" microphone as shown on this site:http://www.prosoundweb.com/recording/tapeop/buildmic/buildmic_16_1.shtml
You can also power the microphone using four AA batteries in a four AA battery cell holder.
I chose to make mine with XLR in/out as XLR is usually the type of mic inputs that I'm using.
I went ahead and made the circuit on a perf board- it's much easier to do on a perf board that has some connecting strips for ground, etc.
The microphone circuit that is also shown on the web page will be used later on so bookmark the page for future reference.