Jim Marshall crafted guitar amplifier masterpieces without the assistance of computers, software or the Internet... In 1963 "graphical methods" meant drawing Bode plots with a pencil and ruler... Times have changed. ● Master the basics ● Design your amp ● Know it works Amp Design for the 21st Century

calculatorLaunch me!

What does this calculator do?


Compared to other calculators we have posted, this one is extremely simple. Even if the formula for DC heat dissipation in a resistor isn't at your fingertips, a little Ohm's Law and the definition of power can easily create it. On the other hand, forgetting to calculate power ratings, particularly for cathode resistors and RC ripple filters, is one of the most common mistakes designers make. Ditto for placing a heat-sensitive capacitor next to some amp-warming ohms. So hopefully the mere presence of this calculator will serve as a reminder to include heat dissipation concerns in the final design. The calculator computes the DC heat dissipation in a resistor based on its value and either the voltage across it or the current through it.


1Work, Voltage, and Power.

2Georg Simon Ohm's Law.

Amp Books company logo Amp Books®   About Us | Legal Notice | Contact
Copyright © 2005-2024 Amp Books LLC
All Rights Reserved