The Victorian Synthesizer (Chapter 3)
In/Out: Electromagnetism Explained (Chapter 4)
How to Solder (Chapter 5)
Circuit Sniffing (Chapter 6)
How To Make a Contact Mike (Chapter 7)
Drivers (Chapter 8)
Tape Heads (Chapter 10)
Electret Microphones (Chapter 11)
Laying of Hands (Chapter 12)
My First Oscillator (Chapter 13)
From Breadboard to Circuit Board (Chapter 14)
On/Off: Gating Audio with Light (Chapter 17)
Hack the Clock: Basic Circuit Bending (Chapter 21 and Circuit Bending section of website)