Other Stuff

Someone wanted to know how to make the Mic Preamp from HERE have a balanced output

Microphone Capsule Wiring

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parts from a CFL lamp - minus the hardware (jack plug etc) I have used these to make treble boosters/fuzz pedals and stuff in the past - so don't throw them away!
Just be careful of the electrolytic capacitor - they are 400volt bastards so make sure it's discharged

parts in that one were as follows
2 transformers
3 film capacitors 2.2n 3.3n and22n
2 metal film caps 100n or .1u
2 NPN transistors
7 1N4007 diodes
1 schottky diode
1 1mH inductor
1. 3.3u 400v electrolytic capacitor
and some resistors

some spares

Simple Transistor Switch

I did this for someone who wanted to know how to use a small voltage in his amp to drive a LED to indicate something being turned on

YES!