The 1.43k ohm resistors are marked 1.4k on the silkscreen, correct? I'm just going to replace them.
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Show posts MenuQuote from: madbean on November 25, 2017, 07:19:22 PMHmmm. Everything looks to be correct. I'm going to try a 200k trimmer if I can get it back apart. I tried the 200k trim pot and dimed it almost gets to unity. Hmmm.
First thing I would look at it making sure you have used 1.43k (or closest value to it) where it says and that your trimmer is actually 20k (not 2k, etc). The output section is really simple so either the resistors going in or the trimmer are to blame for too low a signal.
Quote from: madbean on November 23, 2017, 01:33:28 PMThanks.Quote from: mark123 on November 19, 2017, 12:30:09 AM
Thanks for the info. Is this common?
Peter suggests 1/2W for when and 18v power supply is used but so far all the VFE pedals I've seen are 9v only. A 1/4W is fine for all the VFE projects I've released so far and is actually what is recommended in the new switching board doc. There's no downside to using 1/2W (the upside being better current handling and slightly less noise prone), though. It's just less commonly used in pedals.
Quote from: 287m on November 11, 2017, 02:20:49 PMI saw that mentioned but didn't know what it meant. I Binged it and figured it. Thanks.
... you can view NomNom docs
QuoteYou want to find the closest matching voltage readings on these transistors. At least within 5% of one another, although I generally shoot for 1% or less. So, if a device reads 0.75vDC, I would look for another one that measures 0.74 to 0.76v.Exactly what I was looking for. Since we're looking at Vgs I'm just thinking of picking up a semiconductor analyzer.
Quote from: davent on January 28, 2017, 05:35:35 PMOk, so any CAD program has a schematic view??
Any CAD program could be used. Inkscape or the like could be put into service.
dave
Quote from: AwesomeTyler on January 28, 2017, 06:01:52 AMWell, DIYLC looks to be the answer if you can run Java. Maybe I'll install a virtual machine and give it a go.
Weird. I was just thinking about this same thing lol.
Quote from: selfdestroyer on January 27, 2017, 01:06:30 AMThanks! I'll give it a try!
Give DIY Layout Creator a try. It has turret support also.
https://code.google.com/archive/p/diy-layout-creator/downloads