CLASSIC SOUND

This design is largely inspired by: Colin Mitchell (Talking Electronics) and Daredevil Pedals. For a brief overview of how this circut works, we will seperate it into 5 very basic sections.

Input: This is where you will plug in your guitar. You are going to use this to feed a sound wave into your circut that will be amplified and made to sound fuzzy.

Transistor 1: This is called a common emitter set in a self bias mode. This takes the tiny wave your guitar produces and makes it big/tall (Voltage Gain).

Transistor 2: This is called a common collector. This will take the small amount of current your guitar waves produce, and make them much stronger (Current Gain).

LED: This is called diode clipping. Remeber an LED is a light emitting DIODE. This is where you get that fuzzy sound from. You can experiment here a bit; Try different LEDs or Diodes. It makes the wave from your guitar get choppy.

Output: This is where your amp or powered speakers plug into. Never use headphones and start on a very low volume to prevent hearing damage. In the event you wire something wrong, extremely loud pops, rings, and high pitch noises can be produced.

You will need:

• [1] LED
• [2] 10uf Capacitors (Non polarized)
• [2] BC547 Transistor
• [1] 5.1KΩ Resistor
• [1] 100Ω Resistor
• [1] 220KΩ Resistor
• [1] 2.2KΩ Resistor
• [2] Audio Jacks
• [1] 9 Volt Battery
• [1] Breadboard

If you do not have a BC547 you can use a 2N2222. Just be sure to note legs (B, C, E) may be different on the 2N2222!

Plug in your guitar and enjoy a retro sound!