Recent content by eatkinola

  1. eatkinola

    Frequency-Interchange HPF

    Thanks, @Feral Feline and @Passinwind. I put a circuit down on vero a few days ago -- essentially what I indicated in my original post, minus the 1k8 resistor after the input buffer. I had actually looked at the Mini-HP-Vong (photos) and this one. Considering these and passinwind's design, the...
  2. eatkinola

    Frequency-Interchange HPF

    I've built the Frequency Interchange and would like to build a variant with just the HPF in a smaller always-on enclosure, e.g., similar to how that smaller version is made by Broughton. Looking at the schematic, I think I'd just need to cut out a few sections (shaded below). The first section...
  3. eatkinola

    How do YOU clean your boards?

    personal preference for the most part
  4. eatkinola

    How do YOU clean your boards?

    Laying this soaked in IPA on the board works well for me. I'll do this once or twice then give it a good toothbrush scrub with more IPA. I'll invariably get some grime on the front of the board and use these soaked in IPA pushed around with a chopstick to clean that, too. The effects all sound...
  5. eatkinola

    Double Stuffed Buffer

    Started out wanting to make a TS jack interface box for a pedalboard, then decided to add input/output buffers. This uses a TL072-based dual buffer on vero, with one buffer dedicated to input and the other to output. The buffers can be toggled on/off, depending on the needs of the board setup...
  6. eatkinola

    Benchtop Drill Press Experiences?

    When hand drilling, have you tried clamping the enclosure firmly to the table? That helps me a lot. I hand drill all the time using a center punch and pilot hole and get good results. Rarely it's off by a 1 mm or so, in while case I use a file to make the hole a little bigger so the pots and...
  7. eatkinola

    Transtor leg insulation and biasing

    If the meter probe is pointy enough, you can still get a measurement pretty easily at the base of the leg where it meets the board, despite the leg being mostly covered.
  8. eatkinola

    Transistor Socketing and heat shrink tube

    ^^^ This works very well. Silicone sheathing from flexible stranded wire tolerates heat much better than plastic sheathing or shrink wrap.
  9. eatkinola

    Missing Build Docs / Schematics

    Does anyone have a schematic for Playground? https://www.pedalpcb.com/product/pcb710/
  10. eatkinola

    4 Tap DC Converter/Isolator

    Found this thread while troubleshooting the same issue. Thanks for the tip, Robert! I built one converter using XP Power ITR0305S09 (333 mA) and another using TRACO TBA 1-0519 (110 mA). I tested them using both a battery and cheapo power supply. The DMM placed at each output jack of the...
  11. eatkinola

    Thinner enclosures for easier drilling

    The walls on these SBP pro boxes are a smidge thicker than the standard version. I use the pro boxes for all builds and find them easy to drill using a template, center punch, pilot hole, then step bit counting the steps as @iamjackslackof mentions. I use a hand drill and am happy with the...
  12. eatkinola

    NJM5534D substitute?

    https://www.mouser.com/ProductDetail/Texas-Instruments/NE5534P?qs=j%2FZo4ajzVJKxgUairxFvRg%3D%3D&srsltid=AfmBOoqcVIE-j4ZuybzLnhvJdO0p6GlMPj6Ru-7YAe_fNs8tzavr5YoZ
  13. eatkinola

    Angry Charles - strange thumping noise

    For what it's worth I was having the same issue with rhythmic thumping of this circuit, especially at higher vol or gain, and came across this thread trying to find a solution. Switching from a wall wart to a better power supply (one spot cs6) fixed the thumping. Well the pedal is still a little...
  14. eatkinola

    Emu Amp Sim Switch Mounting

    The drill template suggests making a very large circular hole that would be mostly covered by the template. I've seen others drill a smaller hole then use a metal file to make it rectangular like the faceplate -- that's what I did. Aluminum is rather easy to file down.
  15. eatkinola

    Emu Amp Sim Switch Mounting

    That looks about right. The slide switch can touch the adapter board as long as the solder points don't touch the case of the switch (would cause a short). I assembled the adapter board, switch, and header pins as you have pictured here. However, the whole structure may need to be lifted off the...
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