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Old 7th April 2003, 12:31 AM   #1
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Question Step Attenuators

I'm looking for a someone who can point me in the right direction in finding how to calculate a 24 step log attenuator, or to a site that may have the necessary values. I've seen one with 20 steps, but I'd rather use 24, if possible. Any help would be greatly appreciated.
Jack T.
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Old 7th April 2003, 12:51 AM   #2
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Jack, would you be interested in a remote controlled stepped attenuator with input selection via relays?

New Kit here

Dale
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Old 7th April 2003, 10:11 AM   #3
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Default ATTENUATORS.

Hi,

What type of attenuator are you looking for?

Basically you have a seies attenuator or a ladder type.
The series one is easier to build and presents a contstant impedance to the source.
A bit better sounding but more complex is the ladder type AKA the shunt attenuator.

Here's a link to a site where you can download an Exel datasheet allowing for calculation of values for both types of attenuators:

UB-Elektronik

Cheers,
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Old 8th April 2003, 05:00 AM   #4
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Here's another one for a series type, with either uniform steps ore a really slick three slope deal. Some moron wrote it:

http://quadesl.com/attenuator.html


Check out the moron's site while you are there...

Sheldon
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Old 9th April 2003, 09:19 PM   #5
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Take a look at these:
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File Type: gif ladder attenuator 100 k.gif (10.2 KB, 270 views)
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Old 9th April 2003, 09:20 PM   #6
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....or these:
Attached Images
File Type: gif ladder attenuator 250 k.gif (10.2 KB, 252 views)
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