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T-Pad / H-Pad Calculator - Resistor Values for Attenuation
http://www.nu9n.com/tpad-calculator.html
T-Pad / H-Pad Calculator Resistor Values for Attenuation Input field Enter the impedance of the source device feeding the input of the Pad circuit. Output field Enter the nominal impedance of the destination device you will be feeding audio to. Attenuation field Enter the desired attenuation needed in dB, up to, but not beyond 40.
Passive Audio Attenuators - Radio World
https://www.radioworld.com/industry/passive-audio-attenuators
To calculate the values for an H pad, first calculate the values for a T pad, and then divide the values of the input and output resistors (R1 and R2) in half to equally divide the load. The value of loss in dB must be converted to a ratio of current, voltage or power. The formula to determine K is K = 10 (desired attenuation in dB/20)
T and H Pad Calculator - McSquared
http://www.mcsquared.com/hpad.htm
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 ...
Audio Attenuators - Surplus & Sales
https://www.surplussales.com/Equipment/AudioAttenuator.html
L Pad Audio Attenuator. 8 Ohm / 15w / 60w Music Power. Enlarge Image. (RWV) 31-324. Workman L Pad audio attenuator. 8 ohm, 15 watts, 60 watts music power. Includes knob and dial. 1.6"D x 0.87" behind panel depth. Mounts in 3/8"D hole. $10 each - $9 (6+), $8 (25+) Daven Ladder Step Attenuator.
New Video : “Build A Variable H-Pad” - Preservation Sound
https://www.preservationsound.com/2013/09/new-video-build-a-variable-h-pad/
How are y’all doing today… we have a new video ready: “Build A Variable H-Pad. ” If you’ve ever wanted an easy, controllable way of reducing level in the studio without losing signal balance or creating wild impedance variations (which can have undesirable consequences frequency-wise), this project is for you. I have a couple of these little boxes at Gold Coast …
T-Pad / H-Pad Resistance Calculator - CSGNetwork
http://www.csgnetwork.com/decibelattenuatecalc.html
This calculator is designed to give resistor values for unbalanced T-pads, and for balanced H-pads. We suggest the use of the closest 1% tolerance resistors to the values shown. Attenuators beyond 40dB are not recommended and results are unpredictable. Enter the values for input impedance, output impedance and the desired attenuation.
Attenuation networks and their measurement
https://www.testandmeasurementtips.com/attenuation-networks-and-their-measurement-faq/
The balanced counterpart of the T-pad attenuator is known as an H-pad. Another variation is the bridge T-pad. The balanced π-pad is an O-pad. In balanced attenuators, additional impedances are connected across the transmission line. The ground is then located at a center point with respect to the balanced parallel impedances.
Resistive Attenuators and Pads - RF Cafe
https://www.rfcafe.com/references/electronics-world/resistive-attenuators-pads-may-1966-electronics-world.htm
Typical fixed attenuator T pad for 600-ohm audio lines. ... In T and balanced-H attenuators the limiting factor on the dB range is the resistor value between steps in both the series and the shunt arms. At the higher losses these become too low for practical manufacture. The approximate maximum loss normally supplied in the T and balanced-H ...
Balanced fixed H attenuator for line level | diyAudio
https://www.diyaudio.com/community/threads/balanced-fixed-h-attenuator-for-line-level.255018/
So if I am using this calculator corrently (Passive Audio Attenuators), assuming a 10 ratio of input/output impedance would yield to:-Input impedance of attenuator: 2000ohm (ten times 200ohm output impedance) ... I think I will go with an fixed H pad.
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