diff --git a/tech/Oscillator.wiki b/tech/Oscillator.wiki
index 811da63..a7cdff4 100644
--- a/tech/Oscillator.wiki
+++ b/tech/Oscillator.wiki
@@ -3,3 +3,6 @@
 An oscillator produces signal at a set frequency. They are useful for creating
 the base signals upon which modulation can be performed to encode information.
 An Oscillator is also known as a Clock.
+
+Often osciallators are created using an amplifier and a feeback circuit to
+route some of the amplifiers output signal back into its input.