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
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
Last edited:
Wiper. The connection to the moving contact 😀
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.

Russellc
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.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.
Attachments
uughh???...before i asked this question and exposed my total ignorance on the world wide web....
Russellc
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...
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.
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
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
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.![]()
Russellc
Welcome to the club, I had to ask a friend of mine...

regarding PEC pots I have heard that they do not match chanels levels
have you think of using ladder types pots
have you think of using ladder types pots
regarding PEC pots I have heard that they do not match chanels levels
have you think of using ladder types pots
With two pots, how can they not? Well as long as you adjust one channel or the other to match. I'll set them where the volume is nice for listening, match the levels, then loosen the set screws and move the knobs to the straight up position. If I want it a little louder, turn them a little up, if quieter levels are called for, turn them down a little.
Eventually I will try different potds here, something a little more refined, but for now, the Pass specified PEC pots are being used. Hard to go wrong a 10 bucks a pop! ( At least price-wise anyway ).
Russellc
Welcome to the club, I had to ask a friend of mine...![]()
yes, I figured better to just ask this instead of hooking it up wrong and having to show a pic of what I did!😱
russellc
I do believe I've got it!
Russellc
Very nice!!!
What case is that???
Very nice!!!
What case is that???
This case was made by member Westend, who had offered his services and does so fairly. The side are aluminum extrusions cut to length, driilled and tapped for the front and rear panels, which are 1/8 inch aluminum, 6061 I believe. The top and bottom are drilled and srewed into the little thresded devices that are in the top and bottom tracks of the extrusion.
Contact Westend for details,
Russellc
Nice one Russell![]()
Thanks guys, much appreciated! Westend should get credit for the box. Wait till you see the F-5 box he made from 1/8 aluminum, 1/4 inch for the faceplate, very nice, extremely strong and reasonable as well!
Russellc
This case was made by member Westend, who had offered his services and does so fairly. The side are aluminum extrusions cut to length, driilled and tapped for the front and rear panels, which are 1/8 inch aluminum, 6061 I believe. The top and bottom are drilled and srewed into the little threaded devices that are in the top and bottom tracks of the extrusion.
Contact Westend for details,
Russellc
- Status
- Not open for further replies.
- Home
- Amplifiers
- Pass Labs
- B-1 assembly, Pass boards and PEC pots