TECH STUFF & HAM RADIO

 

Pad Calculator

T and H pad Calculator
Unbalanced/balanced pads

This calculator requires a JavaScript capable browser
 

This JavaScript audio attenuator calculator will provide resistor values for unbalanced T-pads, and for balanced H-pads. Use the closest 1% tolerance resistors to the values shown. Attenuators beyond 40dB are not recommended. Type in the values for input impedance, output impedance and the desired attenuation then push the calculate button, and the results will show up in the tables below.

Do not input data into the tables.

Input impedance
of attenuator

OHMS

Output impedance
of attenuator

OHMS

Attenuation required
in decibels (1-40):

dB

Console Out Tape/CD Deck Out
Spkr Out Line Out
Console In Tape/CD Deck In
Aux In Mic In




Scroll down to see results

T (UNBALANCED) PAD RESISTOR VALUES - RESULTS


OHMS

OHMS
Input Impedance

OHMS





OHMS
Output Impedance

OHMS

H (BALANCED) PAD RESISTOR VALUES - RESULTS


OHMS

OHMS
Input Impedance

OHMS





OHMS
Output Impedance

OHMS


OHMS


OHMS