In-line attenuator for headphones (wiring)?

Norfox · 18th March 2010, 04:51 PM

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!

Glowbug · 18th March 2010, 05:33 PM

Potentiometers (Beginners' Guide to Pots)

Not 3 in/3 out, but two channels

Hope that helps...

Norfox · 18th March 2010, 05:47 PM

Thanks again.

Norfox · 18th March 2010, 08:03 PM

This is a picture of what I'm working with. Can someone put it in layman's terms?

Speedskater · 18th March 2010, 08:30 PM

It's a dual or stereo pot (Potentiometer). Or see fig.6 from above post, then it's a Dual-gang volume control.

Norfox · 18th March 2010, 08:48 PM

Okay, that helps too, but the posts that I am soldering to are not numbered. The diagram is still confusing.

Speedskater · 19th March 2010, 02:38 PM

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.

18th March 2010, 04:51 PM	#1
Norfox diyAudio Member Join Date: Mar 2010	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!

18th March 2010, 05:47 PM	#3
Norfox diyAudio Member Join Date: Mar 2010	It does help. Thanks again.

18th March 2010, 08:30 PM	#5
Speedskater diyAudio Member Join Date: Sep 2002 Location: Lakewood, Ohio	It's a dual or stereo pot (Potentiometer). Or see fig.6 from above post, then it's a Dual-gang volume control. __________________ Kevin

19th March 2010, 02:38 PM	#7
Speedskater diyAudio Member Join Date: Sep 2002 Location: Lakewood, Ohio	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. __________________ Kevin

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18th March 2010, 05:33 PM	#2
Glowbug diyAudio Member Join Date: Feb 2006 Location: Hillsborough, NC/McLean, VA	Potentiometers (Beginners' Guide to Pots) Not 3 in/3 out, but two channels Hope that helps... __________________ Jim J.

18th March 2010, 08:48 PM	#6
Norfox diyAudio Member Join Date: Mar 2010	Okay, that helps too, but the posts that I am soldering to are not numbered. The diagram is still confusing.

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