schematic | Electronics

Aug 282 min read

NG-4 Fuzz

Bootstrapping is great , I said as much myself. Sometimes that love gets a bit too far, sometimes you build a whole career on it. Either...

206 views0 comments

Dec 27, 20239 min read

Bijous: pretty BJT overdrives

Also on FSB! https://www.freestompboxes.org/viewtopic.php?p=297316 Introduction Electric guitarists have been long enamored with...

647 views1 comment

Aug 6, 20239 min read

Chewborg Envelope Filter

Introduction On my quest through re-imagining effects pedals, I felt like envelope-controlled filters deserved some attention. As it is...

625 views1 comment

Jun 30, 202310 min read

"That" compressor

I had wanted to make a compressor circuit for a long time, because it's a popular and somewhat easy to make effect, but the existing DIY...

788 views5 comments

Jun 4, 20235 min read

Trembling Satellite tremolo

The Tremulus Lune is by far the most popular DIY tremolo project, and for good reasons: it's a simple enough circuit that does all you...

452 views2 comments

May 27, 20233 min read

Cable shielding tester

There are times when instrument cables let through an unacceptable amount of interference, usually from mains. It could be a faulty cable...

150 views1 comment

May 18, 20235 min read

CMOS multi-waveform generator

Anyone who has done any considerable amount of repairs and troubleshooting knows the importance of having a signal generator. For audio...

341 views4 comments

Apr 28, 202310 min read

Pevy Knave Guitar Preamplifier

Check also the FSB thread! Peavey, Pavey, Pevy, or is it Pee-vee? One of my favorite amplifiers is still to this day the Peavey Bandit...

447 views0 comments

Apr 27, 20232 min read

Morley M2 Volume Wah (M2WA) schematic

There's not much information about this series from Morley. This company seems to have tried many different control schemes for the wah,...

104 views0 comments

Apr 23, 20232 min read

Mooer Micro DI schematic

I've got my hands on an undersized Mooer Cabsim/Balanced driver pedal, and without even sparing any time actually trying how it sounds,...

244 views0 comments

Apr 2, 20234 min read

MXR M-151 Doubleshot schematic tracing

I had the chance to get my hands on the MXR Doubleshot for a little while, and found out there are no available schematics anywhere. It's...

144 views0 comments

Mar 7, 20231 min read

FBT mini club schematic schema

Let's keep the parade of old Italian amplifiers going. This is a very small and lightweight combo amplifier from, I guess, the late 70s....

158 views0 comments

Mar 1, 20231 min read

FBT Mini-Maxi 52 schematic schema

Second in the series, this is an old Italian transistor amplifier that has been in my house for a very long time. It doesn't sound very...

122 views0 comments

Feb 23, 20236 min read

"True" MOSFET clipping at 9V? Green Turtle overdrive and other applications

MOSFETs, the incredible devices at the core of modern devices, computers, power supplies and… distortion pedals? For some reason, there’s...

503 views0 comments

Feb 22, 20231 min read

Meazzi Emthree M3 Studio 30 schematic schema

Although this site is mostly dedicated to my own original circuits and builds, I've originally envisioned it as something wider, to...

154 views0 comments

Jan 21, 202314 min read

Pelota 2: PT2399 delay

Check also the FSB thread It’s been a couple of years since I’ve made the first Pelota delay: from the very name, it was a circuit...

684 views2 comments

Dec 4, 20222 min read

LFOstortion

Just as I was finishing working on the Enveloping Timbre, I realized I could try different kinds of control voltages, such as a LFO to...

225 views0 comments

Nov 28, 20229 min read

Enveloping Timbre: envelope distortion

Keep the clarity of your attack before letting the distortion embrace you: the best of both worlds! At least that was the original idea...

345 views1 comment

Oct 22, 202215 min read

PUP: a host of Perfectly Usable Phasers

I’ve always liked phasers, in fact one of my first pedals I’ve ever built was a Phase 45 clone. Not only I liked how it sounded, another...

956 views2 comments

Oct 6, 20225 min read

Dudson Narrowcast V2

This is a circuit I've made a little more than a year ago, as an answer to a very popular distortion pedal based on preamplifiers of the...

838 views5 comments