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T-Pad / H-Pad Calculator
Resistor Values for Attenuation


T-Pad & H-Pad Circuits
Required Data Entry
(Default Values Below Usually Work Well For Line to Mic Attenuation)
Input Impedance
(600 ohms for modern rigs)
Ohms
Output Impedance
(600 ohms for modern rigs)
Ohms
Required Attenuation In DB (1 to 40)
(Line to Mic is Typically -40dB)
DB
   

Calculated Results T-Pad (Unbalanced)
Input Resistance (R1) Ohms
Output Resistance (R3) Ohms
Bridge Power Load Resistance (R2) Ohms
Based On Input Impedance Of Ohms
Based On Output Impedance Of Ohms
Calculated Results H-Pad (Balanced)
Input Primary Resistance (R1/2) Ohms
Output Primary Resistance (R3/2) Ohms
Input Secondary Resistance (R1/2) Ohms
Output Secondary Resistance (R3/2) Ohms
Bridge Power Load Resistance (R2) Ohms
Based On Input Impedance Of Ohms
Based On Output Impedance Of Ohms
John M. Anning - NU9N
Phone: 1-815-631-5042
e-Mail:
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