tonmann wrote:
Two problems - the FET and the output:
Let's label the eyelets top row -11,12.13,14 bottom row 21,22,23,24.
You've orientated your FET properly. The drain goes to 14, The gate goes to 13, The source goes to the pot - lug 3
Remove the jumper between 23 and 24. Run the 100k resitor from 24 to 22 (ground) re-label 24 as "Out". 23 isn't used.
As a word of encouragement - doing your own layouts (eyelet, perfboard, stripboard) requires practice, practice and more practice. Do as many different layouts (start with the "simple ones" first) on different types of board as you can, post them for verification and critique - there's always someone around who will lend a second pair of eyes.
A personal challenge - if you're willing to accept !
Try the same circuit on stripboard either hand drawn or, even better, using DIY Layout Creator (no peeking at other stripboards !!!!)
Thanks a lot man. I really needed another set of eyes on this one. After I drew it I realized the second problem with the output, and tried to use the jumper as a quick fix. I have been having a really hard time with the transistor layout though. Thanks for pointing me in the right direction.
I sat down to do this on perf a couple of days ago and really struggled with it. This is a pretty straightforward circuit, so I thought it would be good to test it on different types of boards (as you suggest). But, I think I'm going to have to go back to the drawing board for perf. I found eyelets a lot easier to draw layouts for.
Also, I should probably weigh in the fact that I've never built on perf or eyelet. Just kits and PCBs. Perhaps I should try out someone elses verified project to get the feel for the different board types before I try my own.
It definitely is a lot of fun drawing these up though. My wife thinks I'm crazy.
-shane