Warehouse Clearance Sale!

Guitar Amplifier Electronics Basic Theory book Guitar Amplifier Preamps book Guitar Amplifier Power Amps book Fender Bassman 5F6A book

We are moving our inventory to a new warehouse and boxes of books are heavy! While quantities last, get all four of our guitar amplifier electronics books for $60.

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calculatorLaunch me!

voltage divider

What does this calculator do?

There is a familiar formula for the voltage gain of a voltage divider formed by two resistors: A = R2 / (R1 + R2). Not so familiar are the formulas for determining the value of R1 or R2 when a specific amount of attenuation is desired. Here is a calculator that determines the unknown resistor value.


Guitar Amplifier Electronics: Basic Theory

Guitar Amplifier Electronics: Basic Theory - a modern approach to understanding tube amp design. Learn more.


Guitar Amplifier Preamps Book

Guitar Amplifier Preamps - upstream circuits using triodes and pentodes. Learn more.


Guitar Amplifier Power Amps Book

Guitar Amplifier Power Amps - from the phase inverter to the loudspeaker. Learn more.


Fender Bassman 5F6-A Book

The Fender Bassman 5F6-A - plus Marshall's Bluesbreaker and Plexi. Learn more.


Georg Simon Ohm Book

Georg Simon Ohm - Imagine a world without Ohm's Law. Learn more.