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-   -   B-1 assembly, Pass boards and PEC pots (http://www.diyaudio.com/forums/pass-labs/169799-b-1-assembly-pass-boards-pec-pots.html)

Russellc 5th July 2010 03:45 PM

B-1 assembly, Pass boards and PEC pots
 
Hello, quick and stupid question here. I have the Pass board, and the recommended PEC 25K linear pots. They are installed upside down, so that the solder tabs stick up.

Looking at the board, each channel shows cw,ccw and w. Which hole goes to which tab? There are no markings on the PEC pot or tabs that I can see. Thanks for any help on this simple question. Now for a really stupid question. What does cw,ccw and w stand for? Only thing I can think of is clockwise, counter clockwise, and whatever w stands for. There.

Russellc

flg 5th July 2010 03:56 PM

Wiper. The connection to the moving contact :D

Russellc 5th July 2010 04:05 PM

Quote:

Originally Posted by flg (Post 2235706)
Wiper. The connection to the moving contact :D

Gottcha. Thanks for the hyper fast answer! You wont believe how long I thought about it before I asked this question and exposed my total ignorance on the world wide web.:clown: Can you tell me which is the wiper? I assume the one (usually center) that varies as the pot is turned? If so, does it matter which the other 2 are connected to as long as both pots are wired the same, or it isnt that simple?

Russellc

max426 5th July 2010 05:19 PM

1 Attachment(s)
Quote:

Originally Posted by Russellc (Post 2235714)
Gottcha. Thanks for the hyper fast answer! You wont believe how long I thought about it before I asked this question and exposed my total ignorance on the world wide web.:clown: Can you tell me which is the wiper? I assume the one (usually center) that varies as the pot is turned? If so, does it matter which the other 2 are connected to as long as both pots are wired the same, or it isnt that simple?

Russellc

here is a pic of the wiring.

flg 5th July 2010 05:33 PM

Quote:

Originally Posted by russellc (Post 2235714)
...before i asked this question and exposed my total ignorance on the world wide web.:clown: ...

Russellc

uughh???

flg 5th July 2010 05:36 PM

Usually the ones I play with have a little picture on the side.(Worth 1000 words) Yes it matters. Signal will be increasing when you want it to decrease, when it's bassackwards...

Marra 5th July 2010 07:13 PM

When looked at from the front the right hand pot connects as per the board left to right; whilst the left pot the outer two wires cross over to the outer connectors on the PEC.

Russellc 5th July 2010 10:31 PM

Quote:

Originally Posted by Marra (Post 2235860)
When looked at from the front the right hand pot connects as per the board left to right; whilst the left pot the outer two wires cross over to the outer connectors on the PEC.

Thay was what kept throwing me, if one was right, the other wasnt. The cross explains all.

Russellc

Russellc 5th July 2010 10:33 PM

Quote:

Originally Posted by max426 (Post 2235776)
here is a pic of the wiring.

Thsnk you Max426! This is exactly what I needed to see! Thanks for solving this minor mystery for me, I should have this sucker working by this eve!

Thanks to all!

Russellc

Arick 5th July 2010 11:21 PM

Quote:

Originally Posted by Russellc (Post 2235714)
Gottcha. Thanks for the hyper fast answer! You wont believe how long I thought about it before I asked this question and exposed my total ignorance on the world wide web.:clown:
Russellc

Welcome to the club, I had to ask a friend of mine...:cheerful:


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