Recent content by djmiyta

  1. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    Have to take ESR in elcaps into account as well as derating of mlccs, if you're getting real technical.. What does this mean and how do you go about it?
  2. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    Nice catch. Didn't even occur to me. Fixed that one. thank you
  3. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    Yup the design with that decade ladder was for ultra-sensitive digital hardware that went in an airplane, so it was running off 28V aircraft power which can be a bit unpredictable for noise. In a pedal power supply it would be absolute overkill and you likely wouldn't hear much of a difference...
  4. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    I would strongly recommend (and I'm a little surprised the AI tool didn't mention it) that you add small-ish (100nF) decoupling capacitors in parallel with your 10uF caps on the inputs to each of your supplies. It's one of those "engineering best practice" things we do to further filter...
  5. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    Here is an updated layout. I feel is better but probably doesn't address every issue. I shortened the layout to make it easier moving and adding stuff.
  6. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    It's these. https://cdn.semikey.com/upload/pdfs/18/65/18659b153debe925a36f01a330e6da15.pdf second page. I hope they'll work. and now having fully read the datasheet I see that the filtering caps are of the wrong value. I stupidly assumed SAI would know all about what I was after once I...
  7. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    Hey thank you forum people. Originally (2 weeks ago) I did get B1209-2W. When I went back to (S) AI it then tells me about the regulated version of the same module. This is the first time having ever talked to an AI. I kept up loading my layout and even though I thought I had clearly laid...
  8. djmiyta

    A Regulated Isolated 9vdc Power Supply Layout

    Hoping some one with more experience , expertise , and knowledge will take a look at my layout. See if anyone can spot anything wrong or something needs added or removed. Or even general criticism. I'm thinking its good to go and have been refining the layout for a week or 2 and feel pretty...
  9. djmiyta

    Ksr Ceres preamp

    Echoing all the above. What an absolutely brutal sounding pedal
  10. djmiyta

    Hortin FexDrive layout 3

    This is some sad news to hear I was gung ho from the vids to have one. Maybe my build IS what it's supposed to sound like. The vids do get crunchy mine not so much. Well there are plenty of other to build so I'll put this one away Any suggestions ? I'm always up for high gain crunch pedals and...
  11. djmiyta

    Hortin FexDrive layout 3

    So glad some fellow builders chimed in. When I uploaded the layout I only had one thing on my mind, does the layout work. Wasn't thinking about the fact I didn't finish color coding traces and pot layouts. To be honest although its more work I don't mind wiring in the pots. and though it shows a...
  12. djmiyta

    Hortin FexDrive layout 3

    3rd time on my first layout but ... this one when signal tracing was able to get signal on the output but when I plug my guitar in I get nothing. I use a tone generator off my computer out my headphones jack to the pedal under test. My pedal test rig has a built in audio probe that I use...
  13. djmiyta

    FIRST TIME LAYOUT XTRA EYES?

    Since I suck at reading schematics I figured It'd help my understanding by doing my own layouts. This is my first one and I used DIYLC for the layout. I did the Horton Thexdrive a.k.a. Nutdriver O.D. using the schematic from the build doc. Came out bigger than I'd like but I just want to...
  14. djmiyta

    TC1044 TO LT1044 SWAP

    Wiring would the next likely suspect I assume. All values check out. Maybe the other IC is bad? It’s a small circuit so not a whole lot to go wrong. Maybe the layout is not good I did move a couple of things around. I’d love to get this working it’s a great sounding circuit. Hint Hint Mr...
  15. djmiyta

    Low Ballers question (hypothetically of course)

    Ahhhh thank you . We’ll take a compliment anyway we can.
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