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A friend of mine has been on a quest for the tone of a loud Fender Black panel amp, at about 70dB of real volume. Think of a Vibroverb or Super Reverb on '4' to '7'. We have tried pedals, master volume mods, speakers, expensive attenuators and various amps. Nothing got close to the nuance of a...

I watched a video about Tom's Bukovac (Nashville studio session player / sideman), and really liked how he uses the Vertex Boost with an expression pedal as a volume / boost. So, I borrowed one from a local music store that I repair for, tried it and liked it. I could not hear any difference...

I built this Marble Drive in 2022, which is based on the 'Marvel Drive', to which I call mine 'Prodigy'. It was built to the schematic and bias values people cited, which is pretty much a Marshall model 1987 / 1959 (50w / 100w), except using J-201 FETS instead of tubes. It was really hard to...

Somehow, I accidentally dropped a Spin FV-1 DSP IC into my cart while making a purchase at my electronics supply company. I had no preconceived use for this. What PedalPCB would you build with this chip?

@RobotZombie23 asked me to post this modification to a wah-wah effect pedal, as manufactured by the Jim Dunlop company (Cry Baby, Dunlop, Vox, etc). The relay is a an HK19F-HP-5V, which can be purchased on Amazon for a few $. Here is the schematic: And here is the Layout:

The two shortcomings are: 1.) 'Is it on or off,' and 2.) 'Why does it suck my tone when it is off?' This was precipitated by a client who loves his wahs. Each one he gets, he immediately asks me to put an 'on' indicator LED, which some models I can get away with replacing the DPST stomp switch...

I've seemed to run dry on sources for M7 internal-tooth lock washers, for use with 16mm potentiometers, commonly used on pedals. Any suggestions?

My DoD Chorus 690 wasn't working. The LFO, Flip-flop SAD512D bucket-brigade chip and the compression half of the NE571 compandor was operating, but the expansion wasn't and the Vcc was about +14.2VDC (below the threshold of the LM78L15 regulator). I assumed the electrolytics were all bad and...

Since this area is designated for 'reviews,' I was wondering if anyone has a pedal or two (a build or a buy) which you really thought was going to be great, but turned out 'meh'? For me, I build a Wampler Tweed '57 clone which I like the graphics I came up with, but cannot gel with the pedal...

Built to PedalPCB spec (unusual for me). Having used many UREI 1176 compressors and being underwhelmed with traditional guitar compressors (yes, even my 1982 Ross that I kept for 34 years), this pedal hits what I want in a guitar / bass compressor: big, natural sustain, with a hint of country...

Does anyone have a solution to what to use for the lead pins ('legs') on a SO-8 to DIP-8 adapter, once the SOIC-8 type IC is soldered to the adapter? I've seen some adapters sold with staged pins and I've used reclaimed resistor leads in the past. Just wondering what other builders are doing...

As you can see from the pictures below, I have the Median Compressor populated and loaded in the enclosure for functional test. FYI: I am calling my build, the 'Spirit of 1776' - a little play on the UREI 1176 it borrows from. I had a few challenges so far: - Reviewed the design, compared it...

Does anyone have a recommendation for an affordable VSSOP-8 to 8-pin DIP supplier? I bought a dozen OPA1678IDGKT, thinking they were SO-8 and they turned out to be very tiny VSSOP-8.

I have to admit I bought this PCB as a challenge, as I could never bond with a Tube Driver (neither Chandler, nor the BK Butler). I found them to be like a cross between a Big Muff (furry big sound that has limited use in music without getting lost in a mix) and a Fuzz Face (unlike a Muff, it...

I am new to this Forum and noticed it is very electronics centric and was surprised that there wasn't as much traffic on pedal finishes. I currently use shaker cans of paint, make my own nitro lacquer or use baked Cerakote for covering. I either use waterslide decals, laser etching (remove...

I bought a Marshall 2553 (50w, small head) Jubilee brand new in 1987 and have worked on a few 2550's. IMHO, Appetizer is an improvement on the Guv'nor pedal and these mods will get you 'on the money' when playing through a Fender style amp, especially through a 4x12 (schematic and pics below)...