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  1. pbrommer

    This Week on the Breadboard: Shallow Water

    When I get time (unless someone gets to it), I’ll try my hand at a board. I’m not great, but I’ll give it a shot.
  2. pbrommer

    Could We Do This?

    So, they basically had a cathode-biased 6L6 twin? (Well, the fixed bias is still there). No wonder it felt different. Aleph’s “slap a JFet/Mosfet” would be doable. Maybe branching off of ROG’s Thunderbird but adjust the “output” to be more ‘squishy’?
  3. pbrommer

    El Sol - subbing caps?

    It’ll be just fine.
  4. pbrommer

    Stuff you wanted to know but were afraid to ask

    I found it! It’s a place to put a jumper wire if you use a LTC1144 (or whatever charge pump ends in 1144). You find it by where the charge pump is in the schematic with a note.
  5. pbrommer

    This Week on the Breadboard: Shallow Water

    I was thinking deuterium as a pedal name.
  6. pbrommer

    This Week on the Breadboard: Shallow Water

    This is great. Do I have a Shallow Water? No. Do I need to build Chuck’s Heavy Water? Nope. Will I probably put it on the pile of things to build? Likely:
  7. pbrommer

    💖 Stay Alive ✨ Top Five of '25 💖

    So far this year (because I have about 3-5 that I might be able to finish before the end of the year), but in no particular order 1. Deeptronics Freeze module pedal 2. Nobels ODR-C 3. Fuzz Aldrin (but still testing a few transistors) ** ** this ranking is under review (I was checking voltages...
  8. pbrommer

    What's your nemesis circuit?

    sitting on the sidelines of my workspace is the lectricFX flanger. But I need to get other things finished before I try again with that.
  9. pbrommer

    What kind of pot is this?

    Looks like a reverse audio taper 1M. Better send it to me for disposal. :)
  10. pbrommer

    Sparkly tone machines: Paragon, Closed Circuit Booster Limiter and 401K Compressor

    I award you 3/3 glitters. Curiosity - are you painting these enclosures glittery or do you have a glitter supplier?
  11. pbrommer

    Tube Preamp PCB (draft)

    I did try the tube connections on the edge of the board, but it got kind of clunky. I like the idea of of the grid resistors off board, especially since it will just be for myself. And the parallel trace in that D3/R19 was a “I know it’s parallel but I can’t make the layout any prettier”...
  12. pbrommer

    Tube Preamp PCB (draft)

    As my college football team was getting its teeth kicked in, I decided to work on this layout. Here's revision 3. I think, think there's at least 2mm between traces/holes. I used pads for the tone stack (I know, that part isn't pretty). I also moved the 275v to the top area of the board (with...
  13. pbrommer

    Tube Preamp PCB (draft)

    Self reply. Man, I always screw up where ground loops would/would not be. I’ll give it a shot and have you tear it apart. :)
  14. pbrommer

    Tube Preamp PCB (draft)

    I shouldn’t probably post when I’m a bit tired: I forget context. And yes, you’re right: the airwires are Ground connections. 1. I calculated 1.25 somehow, but I’ll probably move it to .75-.85, just to give myself a bit of leeway. 2. Good thoughts on the signal being smaller width. 3. The...
  15. pbrommer

    Tube Preamp PCB (draft)

    So, I gave it another shot, this time in landscape. Little wider and narrower. Guess I went Hiwatt style. :) I did move some of the potentiometers from the bottom up a couple millimeters (my grid is in 1mm squares). Everything should have 1.5-2mm clearance, all HV is on 1.25mm traces, and I...
  16. pbrommer

    Recommend me a pedal

    Get turbo weird https://aionfx.com/project/xenotron-modulation-machine/ Trem + Flanger + Effects loop = what's not to love? https://www.pedalpcb.com/product/leprechaun/ because 🤷‍♂️ (Speaking of, I need to get mine boxed up)
  17. pbrommer

    Tube Preamp PCB (draft)

    Cool. I went ground pour on the bottom side trying to keep the big VDC on the top. No way I wanted to pour copper with those big traces. And you’re right, there are some big voltages there on the blue (bottom side). I’ll look at that - don’t know what I was thinking. The 1/16 (whatever that...
  18. pbrommer

    Tube Preamp PCB (draft)

    Good evening - I like making perfboard layout of preamps, but I'm kind of nervous of the longevity of some of them (one is working, but the ground and +250VDC are literally millimeters apart!) . So, I've taken a shot at putting together a 125B sized (but no tubes!) layout for 2 tubes plus a...
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