Everyone will have seen the similarities between these two pedals - I'm just building a 2 - in - 1. It's a Jumbo Tonebender that can be a Big Muff Pi at the tromp of a button. It's in prototype on the bench right now, and there's some auditioning to do.... Back later with a schematic and layout!

I just came up with this small effect.
It is a single transistor booster, overdrive and distortion.
Right now it stays on the breadboard, but I plan to put it in a box soon.
It sounds good to my ears and the input caps network can change pretty much the sound of the unit: going up with gain it’s better to reduce the input cap value (available values are 15 nF, 62 nF, 115 nF and 162 nF) wile a big cap and little gain can make an interesting light overdrive.
Someone who prefers knobs can put two...

I've been working on this one on and off for the past month or so. It's evolved into something with quite a few interesting tonal possibilities.

First off, you'll notice that it has switchable diode clipping, this idea was suggested to me by Derringer, so I tried it and it worked well, adding a bit of sizzle to the boost and overdrive. There is a slight volume loss when the 'Dirt' switch is engaged, though there's enough boost in the circuit to compensate for this.

This design originally...

Here's what I end up doing when I want to tweak something while I play guitar (not for neighbors between 1 and 7 AM ):

Fuzz Face with Germanium 2N1305 vintage T's (but sockets allow anything) and the Orange Squeezer, SMD relay true bypass on power off. FF accepts anything from standard resistors to Y-axis trimpots.

I'll dig up the etching layout if anybody wants it.

Hi all, here is my project is now completed, we find the fx tonepad well as those of general guitar gadget kits musikding, an effects loop in the insertion and so on, for those interested the box (51X28cm) is manufactured by Hammond to Canada. I let you judge!
I took time (12months ....), and I needed a project to learn how to make effect pedals and electronics, and via the net is now super affordable! I must really thank everyone, some of guitariste.com, including MR-SONELEC music (via his...

I've been working through a few amp to pedal ports, and here's the first one: the Dinky Drive. schem.gif

I pulled the schem from the Mini II thread in the AMP section of the forum to start. No changes were made other than fixing the volume control (from the original drawing in that thread). I did try other values for C9, but settled on a 130pF MICA (mostly because I'm out of 100pF ceramic ATM). So far, I'm digging it. I have only tried 2N5457's with this, so I don't know if j201 gives more...

Dub Siren project I've found here...

...and added a crude layout sketch and a bill of materials.

Does anyone have a bit more interesting project similar to this (a simple synth)?

Hi, here we are Ross Compressor based on Tonepad layout. Please take it as a joke! It's huge as fuck, so only fully insane person will consider to build it... Build an amp instead :D That will take less space ;)

Here is the link to tonepad with this project files, also check out build report section for even more info and mods

Hi there.

A few months ago I allready built up a version of my süperblender .

The goal was to have a box with that you can blend two effect-loops. The existing circuits couldn't satisfy my needs, so I began to develope an own version.
There was a lot of help Uwe, eBernd, oli & nessbas from the musikding-forum, so thanks to those guys!

Feel free to use it as you like, modifiy, .... or maybe do a layout ;)

der süperblender

As written on the layout....
didn't have time to the this one with GErms so the mojo could be full but maybe next year.
Cheers
:wink: :D :thumbsup

BWHNY.pdf

While playing around with some garden variety OD topographies, I got frustrated and sidetracked and threw together a quick fuzz circuit.

I thought I'd share it with everybody as its cheap, easy and heavy heavy fun fun.

Slap it together on the breadboard. It'll surprise you!

EDIT: The switchable buffer at the front was added to bring up the input impedance. it adds quite a bit of noise with little audible difference to the overall tone of the circuit. I'm working on optimizing the buffer to...

Here is classic Rangemaster with switchable input caps and polarity protection on turrets, not verified... I hope you like it 8)

I started off with the first mu-amp stage of the BSIAB and followed it up with the last two stages of a typical transistor Big Muff. Then I tweaked it until it sounded good. (crappy) Sound clip here:

Thanks to RnFnR for some keen observations during the early development of this one. :thumbsup

I call it an overdrive, but some folks might think it's on the heavy side. It's a little heavy. :mrgreen:

Verified schematic attached.

Notes:

I added a RF rejection cap at the input (marked Cx...

i figured i would try my hand at a 'blender' type pedal with some useful additions, which include:
boosts in each split signal path (courtesy of soulsonic)
a simple feedback loop
phase inversion of the send/return path
running on a dual +9/-9v supply for increased headroom

i used fixed resistors for the boosts with a voltage divider at the end of those circuit portions for attenuation/boost - not sure if that's the best idea...
also, i wasn't 100% certain about using a voltage reference while...

Wow, Thanks for posting. I was wondering a while back about how to have variable input impedance and this answered my question to a T.

Thanks :D

This is a little something I cooked up a few months back. I started off with two stock Electras in series and tweaked until I liked the sound.

This thing is LOUD. I mean really loud. Tons of output volume. It is loud enough to be used either as an overdrive/fuzz or as a dirty boost into a tube amp.

Greg_G suggested some diodes to ground at the output might sound cool, so that's worth a shot if you plan to build this one.

Enjoy.

:thumbsup

For background on this project, check the original thread - pics submitted by dosmun, schematic drawn by analogguru, project files by bajaman.

thanks so all!

Proco Solo schematic

Project files 1200dpi
Main PCB - transfer files
Main PCB - component overlay
Diode PCB - transfer files
Diode PCB - component overlay
Sockets PCB - transfer files
Sockets PCB - component overlay
Label
Label Hammond
:thumbsup

Hi to all.
I was doing some prototype pcb for myself and I thought maybe it will be useful to others so I'll post it here.
I made 2mm hole markers alongside connection pads, so wires can be pull through holes and soldered after.
If anyone is interested I'll draw a pcb for 1,2 or even 4 tubes.
Cheers. :wink:

3TUBEPROTOPCB.pdf

3TUBEPROTOPCB1.GIF

3TUBEPROTOPCB2.GIF

3TUBEPROTOPCB3.GIF

I was asked to make a few Big-Muff-Pi-alikes recently. Here is the board layout I used, and the components I chose. The diodes were all vanilla 1N4148, and the transistors were all metal-canned BC109C (I've got a lot of them).

bmp.jpeg

Hope this layout is useful. I drilled a couple of holes near the lower corners to attach mounting pillars, and used the pots to support the upper end of the board. The PCB fits rigidly into the box. I used a foam block to contain the battery, and the whole...

A quick, simple, cheap, smooth-sounding Valve (Tube - U.S.) emulator. There are various tweaks you can do - change the 150pF to vary the amount of treble fizziness, mess with the bias values to change the shape of the resultant waveforms, make to 5k preset a variable so you can radically alter the sound, add a simple tone control if you want... The possibilities are endless! The distortion really cleans up well with the guitar volume control.

Enjoy!

FuzzyFETs.jpeg

Here is another little circuit. I added a switch to the clipping diodes and a switch to go from 18-9V, sounds sweet :)

Here's a simple little circuit I've been playing around with. I like this one for rhythm, esp. in the lower mid-range of the guitar. You can get some sweet feedback from it as well on the lower stings around and below the 5th fret. Nothing ground-breaking or innovative...just an easy, low part-count overdrive.

Schematic.gif

And the project file.

Sugarbomb.pdf