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Old 5th January 2012, 11:36 AM   #11
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Can you provide a link ?
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Old 5th January 2012, 12:00 PM   #12
AndrewT is offline AndrewT  Scotland
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New TCJ Stepped Attenuator
shows a HQ version.
A3 Stereo Stepped Attenuator
shows a balanced version that replaces the 3 switched unbalanced version.

I can copy my old unbalanced version and the resistor changes to make it work properly and post pics.
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Old 5th January 2012, 12:14 PM   #13
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I was VERY disappointed with the 23 step attenuator that I bought last year. It was just too coarse.

My idea is to build a 50 step attenuator. OK it will need to be digitally controlled but it will use relays in place of the limited number of switch contacts.
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Old 5th January 2012, 05:07 PM   #14
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by AndrewT View Post
It could be implemented with relays rather than rotary switches.
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Originally Posted by KatieandDad View Post
I was VERY disappointed with the 23 step attenuator

My idea is to build a 50 step attenuator..........it will use relays in place of the limited number of switch contacts.
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Old 7th January 2012, 09:22 AM   #15
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AndrewT, not sure of the point that you are trying to make in #14.

My idea is to build a simple decade counter which can have many more than 23 possible outputs, I harped at 50 but 40 would probably do. Each output can then switch a relay providing many more than the 23 step (coarse) limit of a rotary switch.

This gets expensive on relays, hence my original post #9.
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