C6 trimmer cap does nothing

[TTVert]

The square wave looks great and C4 does clearly change the wave but C6 does nothing. Am I doing something wrong? I did set switches as manual states I should.

Dave

[TTVert]

Anyone else? Seems the videos I watch have a similar result w/ C6

Dave

[boo]

Anyone else? Seems the videos I watch have a similar result w/ C6

Dave

Same for me. I see little noticeable effect from either C4 OR C6. I wonder if I damaged them with my poor soldering skills?

[TTVert]

Anyone else? Seems the videos I watch have a similar result w/ C6

Dave

Same for me. I see little noticeable effect from either C4 OR C6. I wonder if I damaged them with my poor soldering skills?

My C4 makes a noticeable difference. I wish i knew how to check those variable caps w/ a meter.

Dave

[cmitcham]

same for me. c4 works well, but nothing from c6. additionally, i can spin c6 either way without stop. did i break it?

[jye1]

Please have a look at this post http://www.jyetech.com/forum/viewtopic.php?f=19&t=1108 . The post was for DSO Shell but it is similar here for DSO138.

The cap trimmers are 360 degree turnable.