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  1. debrad

    Working with Power Filtering and Reverse Polarity Protection

    Thanks @Brett. I made a quick edit to my original post since I had mistakenly implied OMITTING D2 in my first option rather than replacing it with a jumper as you suggest. One question I do have with that first option though is the fact that many schematics seem to show a large capacitor to...
  2. debrad

    Working with Power Filtering and Reverse Polarity Protection

    Hi PedalPCB friends! I'm aiming to make a modification to a NON-PedalPCB circuit but I thought I'd check in here...a) to solicit your wisdom and b) to share the discussion with those of you who may grapple with a similar situation down the road. As shown in the schematic below, the board has a...
  3. debrad

    Diamond Bass Comp

    Thanks @phi1 I just ran across a nice little buffer/inverter circuit on VERO that I think should work nicely (https://www.parasitstudio.se/stripboard-layouts/simple-buffer-and-phase-inverter). It actually has the option to output the inverted and non-inverted signal so I think I'll put those...
  4. debrad

    Diamond Bass Comp

    Hi @phi1 , I came across this post of yours while looking for details on a Diamond Compressor with a blend control and just wondered what your thoughts might be on choosing between the "Zirconia Jr." board you used here (https://lectric-fx.com/product/zirc-jr-optical-compressor/) and...
  5. debrad

    Mach1 vs Southland: Frequency Response

    Yes, I was anticipating the volume drop and thought I'd test a variety of diode pairs in addition to the BAT41s to see if I could find a happy compromise between extra gain and volume loss...never thought about putting R4 on the switch too (mostly because I didn't know that was its function!).
  6. debrad

    Mach1 vs Southland: Frequency Response

    Thanks @manfesto. So, if I was to put those BAT41 diodes on a switch, I shouldn't hear that "mid-cut" until I engage the extra diodes?
  7. debrad

    Mach1 vs Southland: Frequency Response

    Hi everyone, I've been reading a little more about the sonic differences between the Greer Lightspeed and Southland overdrives and the general consensus seems to be that the Southland is more "mid-scooped" (in addition to the differences in gain). Looking at the PedalPCB schematics for the...
  8. debrad

    Hotcake / Awful Waffle Bright Switch

    Apologies...you are right @Feral Feline, C5 on the Anomaly is C4 on the Awful Waffle. I believe the vero layout is a closer match to the PedalPCB circuit (see below). I have simply replaced the 470p cap with a DPDT switch wired like this: input to middle right, output to middle left 470p...
  9. debrad

    Hotcake / Awful Waffle Bright Switch

    Hi folks, I'm currently working on a HotCake build using a vero layout and wanted to implement a suggested mod to create a "bright switch" based on the stock 470pf cap (C4 on PedalPCB's Awful Waffle). The suggestions I've read say to put the 470pf cap on one side of a DPDT and a jumper on the...
  10. debrad

    Choosing Between Q1 Transistors For The Bayonet Fuzz

    Thanks! I definitely lean towards sockets for ALL my transistors these days...a) to allow for experimentation with various transistors...and b) to reduce the chance of damaging the transistors.
  11. debrad

    Power Filtering in Mach 1 Circuit

    Thanks @HamishR, your points are well taken...especially since I've read similar comments about the Timmy connection and I already have a rehoused "V1" Danelectro Transparent Overdrive in my collection (not to mention recent builds of OTHER "transparent overdrives" like the ODR1 and Klon). I...
  12. debrad

    Power Filtering in Mach 1 Circuit

    Would it be wiser for me to just stick with one of the two options I've already been given or split the difference (i.e. 47uf rather than 22uf or 100uf)?
  13. debrad

    Power Filtering in Mach 1 Circuit

    Thanks for the replies (and the link to the power supply discussion, that was helpful!). Based on your comments, I went back to the vero layout for review and can now see what @Brett sees in terms of the two 22uf filter caps being REPLACED by two 100uf caps. Sounds like I'm probably safe...
  14. debrad

    Power Filtering in Mach 1 Circuit

    A while back I built a PedalPCB Mach1 for a friend of mine and was recently reminded how great the circuit sounds. Knowing that the component count is relatively low, I looked into a couple of vero layouts and noticed that the one found here...
  15. debrad

    Depot Recovery

    After mis-printing my original Depot enclosure, I ordered a replacement for my completed board mounted circuit and then got my hands on a second PCB so I could wire the pots to match the wonky enclosure. I'm quite happy with both builds now (including the cap switch that selects between the...
  16. debrad

    Dung Beetle hfe gain

    Thanks @Chuck D. Bones! This is not only a huge help for me in this specific instance but, as I hinted at with @Big Monk above, it's also TOTALLY inspirational in terms of where I hope to get with my comprehension for pedal circuits!
  17. debrad

    Dung Beetle hfe gain

    Still test driving different transistors to see if I can find THE combination. Right now it has a group of 2N5088s that increase in hfe from Q1 (~220) to Q2 (~235) to Q3 (~380) to Q4 (~405) but, if I can be perfectly honest, I haven't heard much difference as I swap them in and out. I also had...
  18. debrad

    Dung Beetle hfe gain

    Thanks everyone! I hadn't found any discussion of Dung Beetle or Scarab Deluxe hfe so I figured the circuit must sound pretty good with a wide range of gain. Thankfully there are folks like @Big Monk who understand the circuit in ways that I hope to some day and I will definitely take his...
  19. debrad

    Dung Beetle hfe gain

    Hi everyone! I just dropped four 2N5088s into my completed Dung Beetle PCB to make sure it worked before boxing everything up...and it did (YAY!)...but I thought that I would ask if there was a consensus on hfe values for the Dung Beetle. Looks like the four I chose measure around 235 hfe but...
  20. debrad

    Adding Bias Mod To Marigold (Yellow Hybrid Tone Bender)

    The Beavis site recommended a B10k potentiometer with a 2.2k resistor but I followed Zachary Vex's recommendation for a B5k pot and substituted a 1.2k resistor since my pot choice had a lower overall resistance.
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