Category Archives: Pedals

Tubescreamer simulation under PSpice

Just for fun, here is a PSpice simulation of an Ibanez Tubescreamer. Simplified schematic used to simulate : Note : Drive and tone pots are represented as resistor. More convenient under PSpice as pots are not implemented (to my knowledge, … Continue reading

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Is this pot log or lin ?

Well, I need a 100k pot for my mid-boost module (or whatever the reason !). Hey, I found 2 pots in my box. Let see : are they log or lin ? For sure, they have a code : 100k … Continue reading

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Honk machine (Honk-Overdrive)

I like a big mid-range boost with ODs. That’s why I like two TS in series for instance, one for rythm, the other for choruses to add gain and to cut through the mix, or a TS in front of … Continue reading

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Have you said “flipflop” ?

(Specially for my friend Pat ) Ibanez, Boss and many others have not chosen to implement 3PDT true bypass, but instead transistors based flipflop circuits in their effect pedal. Probably because it’s cheaper ! See the following schematics (many thanks … Continue reading

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Boss SD-1 Overdrive mods

I’ve got this old made in Japan Boss SD-1  on eBay. Classic japanese JRC4558DD and green capacitors : So, how does this stock pedal sound like  ? The SD-1 schematic is close to Ibanez TS808′s one. But close does not … Continue reading

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Ibanez PQ9

Yipee ! A japanese Ibanez PQ9 at home, received today ! The honk I like is definitely between 600Hz and 800Hz (remember that medium 720Hz boost in TS808 and other TSx ?) Schematic can be found there (OK, it’s not … Continue reading

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Boss DS-1 Classic Distortion Effects Pedal Modded

The DS-1 is the well known “orange pedal” from Boss … it provides a harder distortion effect than ODs. Completely stock, I find this pedal quite toneless / fuzzy and it provides to my ears harsh distortion, not reproducing nuances … Continue reading

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Xotic BB+ Preamp for sale (Sold)

For sale 190 USD !

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Ibanez vintage MSL (Metal Screamer) TS808 modded

I just love the Masters Series (“L”) and Power Series (“10″) from Ibanez ! For a few bucks, you can get a MSL on eBay, full of vintage mojo components ! I like very much my TS10 and I find … Continue reading

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Marshall Bluesbreaker mods

Here’s a Marshall Bluesbreaker. The goal will be to modify it to get closer to the legendary King Of Tone (KOT) of AnalogMan … I like the original BB Marshall. It sounds a little harsh but not too much let’s … Continue reading

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