In-line attenuator for headphones (wiring)? - diyAudio
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Old 18th March 2010, 05:51 PM   #1
Norfox is offline Norfox  United States
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Default In-line attenuator for headphones (wiring)?

This is really simple for you people. I am trying to put an attenuator between my computer and the powered stereo speakers, so I don't have to go into the desktop to control the volume. I purchased an attenuator (calrad #25-396)(10k dual audio, 1/4 watt, 20% tolerance). 3 wires in and 3 wires out, 6 connections. I do not have a wiring diagram. Please help!
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Old 18th March 2010, 06:33 PM   #2
Glowbug is offline Glowbug  United States
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Potentiometers (Beginners' Guide to Pots)

Not 3 in/3 out, but two channels

Hope that helps...
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Old 18th March 2010, 06:47 PM   #3
Norfox is offline Norfox  United States
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Default It does help.

Thanks again.
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Old 18th March 2010, 09:03 PM   #4
Norfox is offline Norfox  United States
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Default I don't know what I'm doing.

This is a picture of what I'm working with. Can someone put it in layman's terms?
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Old 18th March 2010, 09:30 PM   #5
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It's a dual or stereo pot (Potentiometer). Or see fig.6 from above post, then it's a Dual-gang volume control.
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Old 18th March 2010, 09:48 PM   #6
Norfox is offline Norfox  United States
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Okay, that helps too, but the posts that I am soldering to are not numbered. The diagram is still confusing.
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Old 19th March 2010, 03:38 PM   #7
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So, we have two pots on a common control shaft.
The input signal is connected to the 2 end posts.
The output signal is connected to the center post and to the end post that the ground/neutral/shield wire is connected to.

The odds are 50/50 that the rotation will be backwards.
If so than swap end posts.
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