Moderators: pompeiisneaks, Colossal
Don't really understand what you mean bepone. The widths of the traces have been simulated using a PCB software, and I've more than 500 happy customers around the world!bepone wrote: ↑Sun Dec 11, 2022 9:04 pm i allready mention many times, and people repeating the same error again and again... forget about theory and first power up which will be ok.
too low clearance between Ub+ and GND lines, there is never too much, also if is 1cm between the lines! here is 1 mm , 40 mills or less if i can judge from the eye.
frusciante89 » if you are doing PCB for sale you need to think about everything, not only ideal condition. what will be if the amp operating in high humidity area, full of dust (bar etc).
you can check how is looking marshall DSL pcbs with time, and i can add many others (like ampeg V4 pcb where is nice clearance)
first of all i'm more than 25 years /design, repair/ in professional electronic pcbs. also i was working on 6kV vessel thruster ABB pcbs (thruster power 4.4MW) where you have more than half meter distance between the lines.frusciante89 wrote: ↑Sun Dec 11, 2022 9:50 pm Don't really understand what you mean bepone. The widths of the traces have been simulated using a PCB software, and I've more than 500 happy customers around the world!
What you mention might be true for 1960s PCBs in which you had bare copper traces exposed. In modern PCB manufacturing, the protection layer on top of the copper avoids the potential arcing you're mentioning. Also, from my experience, this might potentially happen only in high voltage circuitry, but we are talking about signal of the order of kV - definitely not something you see in a tube amp.
If you have an example of a board failing this way, would love to see it! Again, never had an issues like that in my boards in more than 10 years
Hello! I make a board for Dumble clones: I documented the 102, 124, 183beasleybodyshop wrote: ↑Mon Sep 25, 2023 2:53 am Do you make a PCB for a Bluesmaster HRM build per chance?
