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To copy the sound of the 33 / grind settings, as they are more-or-less just the tc preamp with bass at 0, and then the treble at two different positions.

That’s about right. When I made a Triangulum I took the parts values around the switch from the isocoles schematic and added that to the Triangulum (didn’t need the full isocoles as I already have multiple tc preamps), difference is very subtle. Slightly less treble in the ‘grind’ setting...

Would be cool to have some high voltage tube projects, maybe an integrated boost converter for the high voltage so we can just power it with 12vdc (directly powered heaters). I wonder if that would affect feel and sound, versus the more typical transformer power supply? i don’t know what Mr PCB...

Wouldn’t be 120vac on the veroboard just on the transformer primary, secondary is attached to the veroboard which should only be something like 12vac which then gets rectified, filtered, and regulated. I briefly looked into Rg’s spider power supply diy, real cool but these days with the...

When I’ve pulled parts on pedalpcb boards (which I’ve done a few times, and luckily it’s usually just been mods rather than mistakes), I hold the part from the component side, heat the pad on the solder side, and lightly pull (not hard). resistors are easy since you can bend the lead as you...

My cheap Stagg 9v supply arrived and like my old one, dead quiet. annoying that the budget-brand cheap supply is so much quieter than the name-brand one that’s double the price but there you go I guess.

I got a cheap ‘Vitoos dc8’ for my birthday last year or the year before, just a cheapo supply with three isolated outputs. Two are adjustable voltage which I like (9/12/18) and the 3rd is just daisy chained to like 5 outputs. it is actually isolated also which is nice. For a while I was running...

As in you have a power supply that is + center, - barrel, and the pedal requires - center + barrel (like most pedals)? if that is the situation don’t use the wrong polarity power supply. You may damage it, and it won’t work anyway. here is a good post from RG Keen regarding what can happen...

you just reminded me I have a sunn beta pcb I need to build, forgot about it! also I’ve always wanted to try one of those UBEscreamers, look really cool.

I have a modern chinese rat with an op07 and a parentheses I made with an old metal-can Fairchild UA308. Set the same they pretty much sound the same to me. The 308 gates out easier with high output pickups and high distortion settings. But I also pretty much just use it for doomy sludge...

I was a die hard elixir fan for years and years. I ended up getting some bad single strings maybe a year and a half ago so I decided to try out some other brands. Ended up settling on EB’s, sound just as good to me, last a good long while and are a hell of a lot cheaper. my least favourite set...

I have an old one and the Waza one. The original I removed two caps that I think disables one of the gyrator mid peaking filters (too lazy to look it up) and it makes it much more usable as a distortion or boost pedal. the custom mode is nice on the Waza, more modern/refined sounding and it has...

In my opinion, load box + reamp is the way forward. there’s good reason why the likes of the TAE, and power station, are so popular. I built a reactive load box (tweaked values to match the impedence curve of my cab), I run tube amps into the load box, then reamp using a solidstate power amp so...

Voltage and current levels within a pedal are typically too low for any noticeable crosstalk between traces, as far as I know. At least I’ve never had a problem (that I know about)

Hard clipping needs to go to ground. That drawing would be a coring circuit like D4/D5 before it and it also wouldn’t do anything unless you cut the trace between those to joints. if you want to do switchable hard clipping, remove D6/D7, and put your switch in place of one of the diodes. for...

Very nice, looks great. Love the knobs. I almost bought some repro ones like that on eBay but couldn’t quite stomach the price. As much as I love the 125b enclosures, it just doesn’t feel right to use such a small enclosure for a muff, so mine is in a 1590bb.

Nice, I love seeing stuff like this. I tried making a small ‘single step’ attenuator (-7db, if memory serves) based on JohnH’s design but at the time I was focused mostly on taming my Mesa rectifier in modern mode, which has no negative feedback in that mode, and the less negative feedback...

sounds like there may be a wiring issue or a wrong part somewhere, my Triangulum is about the same output as my integral with the bass at zero, and my real tc pre with bass at zero. actually, the integral preamp is slightly louder than my real tc pre. the 33/grind modes should sound almost...

The 33/grind settings cut bass by design, meant to make a loose high gain amp sound very tight with a guitar. I doubt the fortin 33/grind settings will be useful for bass. the tc preamp setting won’t cut bass unless you turn the bass lower than noon though. So that should be useful with bass as...

I haven’t built this specific model, but I did build the Triangulum (just the 33) and the Integral (tc pre clone) as well as I have made tagboard tc pre clones in the past and have an original. They’re all the same circuit but with a fixed eq for the fortin models, rather than adjustable. the...