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I built a Splendiferous (Royal Blue) OD and, with the back off, I noticed that the red LEDs in the feedback loop of the op amp are always clipping, in that they flash to some degree on every note, no matter how soft, no matter how low the gain. Obviously, the more gain, the harder I play, the...

Here is the second of my current series of (5) builds. I was attracted to this as its allegedly a Bjorn design and I have none of his. It also uses red LEDs for clipping, which I don't have anywhere else. I had no challenges with this build and even managed to use a few of my pile of gifted...

Well, it seems that MichaelW has beaten me by a few weeks in producing this pedal. I've been a lifelong Robin Trower fan and have been looking forward to this one. I've built other tube screamer pedals in the past so I was worried that it wouldn't be anything different - but it is. For those...

I recently built a Tweed Deluxe, mainly from a Mojotone kit (with some substitutions), and love it. It's fat, bass-heavy, and has a harmonic palette that you have to hear because I can't describe it. I've been playing my vast selection of pedals through it and usually go back to no pedals, as...

The pedalpcb board for this one is tight - use 5mm resistors if you have them, else you'll be standing them on end. The JFETS require a mounting board as the pcb doesnt have a surface mount option. I had a batch of JFETS I'd graded for the Chop Shop build so was able to find two matched pairs...

For this week's build I went with the Seabed delay as I was hoping it would replace my expensive DM-2W (the sale of which will buy enough components to build about 4 pedals). I'm not disappointed. I got the PT2399 from Tayda for $0.79 and it works great, so no problems there. Overall, the build...

Put together a Park and Ride yesterday. I ran out of imaginative names so just called it 'Wah' so friends can have some idea of what it is. One issue was that the TL074 is not a 16 pin IC, but a 14 pin, so I had no sockets for it and had to solder it direct. Another was that it requires a 4u7...

I went the SMD + TO92 board route with this one as I read that J201 idss is critical for getting the FETs biased. I ordered 10 MMBFJ201 from Tayda at 42 cents each and 9 TO92 boards from Osh at $1.40 total (including shipping !!). Soldering SMD was a new experience so it took a while but after...

Next up on my list of winter pedal projects was the 401K, which I just completed. This build specified some resistor values that I didn't have (27k->22k, 56k->47k or 68k, 390k->360k, 4M7->2M), so I had to make some decision about what matters and what doesn't when subbing in other values. Also...

I have a batch of pcbs to work through this winter and decided to start with the easiest one, the Rangemaster / Naga Viper clone 'Dragons Breath' by pedalpcb. The build was very easy as there are few components in this design. It's basically a Dallas Rangemaster with a silicon transistor and 3...

I'm having some transistor bias issues with my breadboarded Muffin here. As the collector voltages are way too high on all 4 transistors I'm wondering if I got a 'special' batch of 2N5088s from mouser. Is there a simple circuit that I can build on a breadboard that would allow me to measure...

I'm breadboarding the Violet Rams Head version of the Muffin Fuzz. Output seems low. Looking at LTspice, I see the collector voltages are supposed to be 4V and change, but 6.6V at Q4. All of mine measure as 7V and change. I checked all the resistors, they are correct values. Base voltages are...

Working to increase my collection of soft clippers I'm doing a build on this one. I like the design - a TS without buffers and some tweaks to the filtering and clipping. Not sure why the original TS needed transistor buffers anyway, given that the input impedance of an op amp stage is huge...

I've built a few pedals, built a bunch a pedal models in LTspice, and have some electronics knowledge from university (ok, in 1982..). I've been looking specifically at the design of the filters in some of the popular pedals to try and figure out what the designer wanted. There's been a lot of...

For my first pcb build of a pedal I decided to build a Clark Gainster / Hoochie Mama clone. The closest pcb available is the Red Herring, and other members figured out how to do this a while back: I breadboarded it successfully and played it for a few days using the Protoboard: Protoboard...