Wiring diagram symbol for transistors.

The Difference Between NPN And PNP Transistors

September 20, 2024

Transistors come in a lot of different types, but in this article, I’m only going to be talking about bipolar junction transistors (BJTs). Specifically, I’m going to be talking about NPN transistors and how they’re different from PNP transistors. A transistor is a component that’s very commonly used in guitar pedals and other electronics. If […]





Diagram showing current flow in a transistor when it's saturated.

Transistor Saturation, Active, And Cutoff Region

August 23, 2024

It’s time to get a little more in depth on transistors. If you haven’t read it yet, check out my guide to transistors for some background on how transistors work in guitar pedals and in general. This article builds on the general guide to explain saturations, active, and cutoff region in transistors.  The basics of […]





Wiring diagram showing how a transistor makes gain.

What Is Transistor hFE?

July 23, 2024

Transistors are used a lot in guitar pedals. Sometimes they’re used for a general signal boost to create a clean boost pedal like a ZVEX Super Hard On, sometimes they’re used as building block as part of a larger pedal design, and sometimes they’re used to create awesome fuzz pedals. All in all, transistors are […]